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Kjemi Flashcards

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1
Q

For neutralization of 6 cm3 of acetic acid solution was used 12 cm3 of NaOH with concentration 0.2 mol. dm-3. What is the concentration of acetic acid

A

0.40 mol. dm - 3

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1
Q

How many valence electrons are in the atom of an element with a proton number

A

6

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2
Q

Select the vitamin needed for blood coagulation

A

Phylloquinone

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3
Q

An aqueous HCI solution has a concentration of 4.1 mol.dm-3. The solution density is 1068 g.dm-3. Calculate the mass of HCI contained in 120g of the solution. (Mr(HCI)= 36.5):

A

16.8g

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4
Q

Select the name of heterocycle in the following picture: N-N_h

A

Imidazole

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5
Q

Select a name of the compound: OH -HO-H

A

D-glucopyranose

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6
Q

A compound with the following formula tas formed by a reaction of: CH3 -CH (OH) - O -CH2 -CH3

A

no answer is correct

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7
Q

Provide the name for a peptide shown in the picture: HO - CH3 - NH2 - 0 - NH - NH2- HO - O

A

threonyllysine

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8
Q

Select the reaction of the tricarboxylic acid cycle, at which NADH is formed:

A

Conversion of 2-oxoglutarate to succinyl-CoA

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9
Q

The value of the ionic product of whater, Kw, at 25°C is:

A

1.0 x 10 -14

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10
Q

You need to prepare a 10% solution of sucrose from 200g of 30% solution. What mass of water is necessary to add?

A

600g

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11
Q

Select the redox reaction from the following:

A

No answer is correct

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12
Q

An isotope of oxygen 18O contains:

A

8 protons - 10 neutrons

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13
Q

Conversion of propane-2-ol to acetone is:

A

Dehydration

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14
Q

Select a solution at which the concentration of chloride anions is the same as in the solution of FeCI3 with a concentration of 2 mmol.dm-3:

A

CaCI2, c= 6 mmol.dm-3

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15
Q

250 mL of a hydrogen peroxide solution contains 40g of H2O2 (Mr=34). What is the molar concentration of the solution?

A

4.70 mol. dm -3

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16
Q

Enzymatic hydration of fumaric acid will produce:

A

Malic Acid

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17
Q

Which of the following aqueous solutions will have a neutral pH value?

A

No answer is correct

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18
Q

Calculate the number of H2O molecules contained in 228 cm3 of water. Density of water is 1g/mL.

A

7.63 X 10 24

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19
Q

Which of the following species does not display acidic properties in an aqueous solution:

A

H20

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20
Q

Wich of the following compounds is a six-membered heterocycle with two nitrogen atoms?

A

Imidazole

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21
Q

A solution of HNO3 (50 cm3, c=0.1 mol/L) was diluted by addition of 450 mL of water. What is the pH of the solution?

A

2

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22
Q

Select a true statement about DNA:

A

Opposite nucleotides in double helix are held by hydrophobic bonds between bases

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23
Q

Provide the correct names for the three amino acids whose structural formulas are below:

A

Asparagine, leucine, proline

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24
Q

A pH value of HCI solution is 2.5; what is the concentration of the solution?

A

No answer is correct

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25
Q

Select a correct statement about amines:

A

aniline belongs to the group of primary amines

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26
Q

Select the biochemical conversion that is catalyzed by oxidoreductase enzymes:

A

conversion of ethanol to acetaldehyde

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27
Q

Which of the following elements has the electron configuration (Ar)4s24p5:

A

p

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28
Q

What is the formula of the compound whose name is iron (III) hydrogen sulfide?

A

Fe(HS)3

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29
Q

Which of the following compounds would provide H+ in an aqueous solution?

A

Methylamonium cholride

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30
Q

In 500 cm3 of a solution is dissolved 120g of acid. The solution density is 1180 g.dm-3. What is the mass fraction of the acetic acid in the solution?

A

0.10

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31
Q

Select the name of the compound: HO - OH -OH - N - N -N -N NH2

A

Adenosine

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32
Q

Calculate the mass of nitrogen contained in 17 grams of amino acid alanine: (Ar(H)=1, Ar(N)=14, Ar(O)=16.

A

2.67

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33
Q

Calculate the volume of H2 that will be released in reaction of sulfuric acid with 5g of zinc. Ar(Zn)= 65; consider the standard conditions and properties of an ideal gas.

A

1.72 dm3

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34
Q

Select an ionic compound among the following:

A

CaCI2

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35
Q

Which of the following molecular formulas represents a correct formula of toluene?

A

No answer is correct

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36
Q

The residue C6H5-CH2- is named:

A

Benzyl

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37
Q

Select a monocarboxylic acid among the following:

A

Pyruvic

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38
Q

Hydrolytic cleavage of the compound on the right will provide: CH3-CH2-O-CO-CH2-CH2-CH3.

A

Ethanol + butanoate

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39
Q

Select an amino acid that has a molecular formula C5H11NO2S:

A

Cysteine

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40
Q

Select the formula of copper(I) nitrite:

A

CuNO2

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41
Q

Select the formula of calcium hypochlorite

A

Ca(CIO)2

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42
Q

Select the formula of barium manganate:

A

BaMnO4

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43
Q

Select the formula of magnesium hydrogen sulfite:

A

No asnwer is correct

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44
Q

Select the formula of iron (II) phosphate:

A

Fe3(PO4)2

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45
Q

Select the formula of chromium(III) hydrogen sulfate:

A

Cr(HSO4)3

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46
Q

Select the formula of magnesium diphosphate:

A

Mg2P22O7

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47
Q

Select the formula of barium sulfite:

A

BaSO3

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48
Q

Select the formula of calcium hydrogen phosphate:

A

CaHPO4

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49
Q

Calculate the mass fraction of oxygen, w(O), in hydrogen peroxide:

A

0.94

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50
Q

Calculate the mass fraction of oxygen, w(O), in glucose (Mr=180):

A

0.53

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51
Q

Calculate the mass fraction of nitrogen, w(N), in ammonium nitrate (Ar(N)= 14,0):

A

35.0%

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52
Q

Calculate the mass of potassium in 87g of anhydrous potassium sulfate (Ar(K)= 39,1; Ar(S)= 32,1):

A

39.0g

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53
Q

Calculate the mass of silver in 3,50g of silver nitrate (Ar(Ag)= 180; Ar(N)= 14,0):

A

2,22g

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54
Q

Calculate the mass of calcium sulfate containing 10g of calcium (Ar (Ca)= 40,1; Ar(S)= 32,1:

A

34.0g

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55
Q

The Avogadros constant expresses:

A

the number of particles in one mole of substance

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56
Q

Calculate the substance amount in 1g of tetrachloromethane (Ar(CI)= 35,5)

A

6,49 mmol

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57
Q

Calculate the substance amount in 1kg of water:

A

55.5 MOL

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58
Q

Calculate the number of oxygen atoms in 0,4 mol of KNO3:

A

NO ANSWER IS CORRECT

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59
Q

Calculate the number of hydrogen atoms in 1g of water:

A

6.69.10 (22)

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60
Q

Calculate the mass of 6,72 m3 of nitrogen (t=0°C, p= 101,3 kPa) (Ar(N)= 14,0)

A

8.40KG

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61
Q

Calculate the mass of 3,36 m3 of helium (t=0°C, p= 101,3 kPa)

A

600g

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62
Q

Calculate the mass of CO2 produced by the complete combustion of 20g of ethyne (acetylene):

A

67,7g

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63
Q

Calculate the mass of CO2 produced by the complete combustion of 1g of glucose (Mr=180):

A

0,60g

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64
Q

Calculate the volume of hydrogen (t=0°C, p= 101,3kPa) released from 16,35g of zinc in excess of hydrochloric acid (Ar(Zn)= 65,4):

A

5,60dm 3

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65
Q

Calculate the volume of CO2 produced by the complete combustion of 9g of ethyne (acetylene) (t=0°C,p= 101,3kPa):

A

15,5dm 3

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66
Q

Determine the number of neutrons in 35 (17)CI nuclide:

A

18

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67
Q

Determine the values of the subshell quantum number I, if n= 3:

A
  • 2, - 1- 0- +1 -+2
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68
Q

Select the electron configuration of aluminium:

A

(He) 2s (2) 2p(1)

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69
Q

Which element has the electron configuration (Ne) 3s(2) 3p(1)?

A

Boron

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70
Q

Which element has the electron configuration (Ne) 3s(2) 3p(2)?

A

P

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71
Q

How many electrons are there in the valence sphere of sulfur atom?

A

16

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72
Q

How many valence electrons are there in the element with proton number of 17?

A

7

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73
Q

How many valence electrons are there in the element with proton number of 15?

A

5

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74
Q

How many valence electrons are there in the element with proton number of 19?

A

No answer is correct

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75
Q

Which element belongs to the p2 elements?

A

Sn

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76
Q

Which element belongs to the p3 elements?

A

Sb

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77
Q

Which element belongs to the p4 elements?

A

Se

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78
Q

Locate the least electronegative elements in the periodic table:

A

Left bottom part of the table

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79
Q

Select the compound with covalent bonds:

A

SiO2

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80
Q

What is the shape of molecule with sp-hybridized central atom?

A

Linear

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81
Q

What is the shape of molecule with sp3-hybridized central atom?

A

Tetrahedral

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82
Q

Select the complex compund:

A

Na3FeF6

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83
Q

Select the substance with intermolecular hydrogen bonds:

A

H2O

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84
Q

Select the substance with intermolecular hydrogen bonds:

A

H2O

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85
Q

Select the ionic compound:

A

MgO

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86
Q

Select the ionic compound:

A

KBr

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87
Q

Select the ionic compound:

A

CaO

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88
Q

Calculate the mass of glucose in 240g of 0,80% solution:

A

No answer is correct

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89
Q

Calculate the mass % of the solution prepared from 3kg of substance and 12kg of water:

A

20%

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90
Q

Calculate the mass % of the solution prepared from 600g of NaOH and 2,4kg of water:

A

20%

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91
Q

Calculate the mass of water needed to make 10% solution from 2kg of 40% solution:

A

No answer is correct

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92
Q

Calculate the mass of water needed to make 20% solution from 50kg of glucose:

A

No answer is correct

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93
Q

Calculate the mass of NaCI needed to make 40% solution from 3kg of water:

A

1200g

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94
Q

Calculate the mass of sucrose needed to make 25% solution from 3kg of water:

A

750g

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95
Q

200 cm3 of solution contains 10g of alanine (M= 89,0). The molarity of alanine is:

A

0,56 mol. dm - 3

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96
Q

What volume of 2 M H2SO4 contains 40mmol H2SO4?

A

20 cm3

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97
Q

Calculate the mass of NaCI after evaporating 250 cm3 of 0,5M solution (Mr= 58,5):

A

7.31g

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98
Q

Calculate the mass of iron(II) chloride in 300 cm3 of 0,1M solution (Ar(Fe)= 55,8; Ar (CI)= 35,5):

A

3,80g

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99
Q

Calculate the mass of NaOH in 400 cm3 of 0,25M solution (Ar(Na)= 23,0):

A

4g

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100
Q

Calculate the mass of HCI (Mr= 36,5) in 120g of 4,1M solution (Solution density 1068 g.dm-3):

A

18.6g

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101
Q

To neutralize 16 cm3 of 0,5M HCI you need:

A

20 cm3 of 0,40M NaOH

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102
Q

To neutralize 100 cm3 of 0,2M sulfuric acid you need:

A

80 cm3 of 0,25M Ba (OH) 2

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103
Q

To neutralize 250 cm3 of 0,20M KOH you need:

A

250 cm3 of 0,10M sulfuric acid

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104
Q

To neutralize 80 cm3 of 10mM calcium hydroxide you need:

A

4cm3 of 400mM HCI

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105
Q

Calculate the volume of 0,2M HCI needed to neutralize 0,404g of KOH (Mr= 56,1):

A

36,0 cm3

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106
Q

Electrolytic dissocsiation is:

A

Decomposition of substance to positive and negative ions

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107
Q

Select the strong electrolyte:

A

NH4CI

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108
Q

Select the weak electrolyte:

A

NH3

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109
Q

What is the molarity of NaCI, if the concentration of sodium ions is 150 mmol.dm-3?

A

150 mmol. dm - 3

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110
Q

NaOH solution has pH= 12,0. Calculate the molarity of sodium ions:

A

10 mmol. dm - 3

111
Q

Calculate the concentration of chloride ions in 15mM barium chloride:

A

30 mmol. dm - 3

112
Q

What is the molarity of sodium sulfate solution, if sodium ion concentration in this solution is 18 mmol.dm-3?

A

9 mmol. dm-3

113
Q

The molarity of potassium sulfate solution is 0,04 mol.dm-3. What volume of this solution contains 1 mmol of potassium ions?

A

12,5 cm3

114
Q

The value of the ionic product of water Kw is:

A

1,0.10(-14)

115
Q

Select the species which can be a Brønsted acid in aqueous solution:

A

HPO4 (2-)

116
Q

Consider dissolving ammonia in water. Which species makes the conjugate pair with ammonia?

A

NH4 (+)

117
Q

Consider dissociation of acetic acid in water. Which species makes the conjugate pair with CH3COO-ion?

A

H+

118
Q

Which species makes the conjugate pair with CH3 -NH2 in aqueous solution?

A

OH-

119
Q

Select the conjugate pair:

A

HCOOH; HCOO-

120
Q

Select the conjugate pair:

A

H2O; H3O+

121
Q

Select the weak acid:

A

H3BO3

122
Q

Which acid is not the weak one?

A

HBr

123
Q

s there a strong acid among the following compound?

A

C6H5OH

124
Q

Calculate the concentration of OH-ions, if pH= 9,0:

A

1.10(-5) mol.dm-3

125
Q

What is the pH of calcium hydroxide solution, if c= 2 mmol.dm-3?

A

11,30

126
Q

NaOH solution has pH= 11,0. Calculate the pH, if the solution is diluted by adding 9 volume portions of water:

A

10,0

127
Q

Hydrochloric acid, pH= 2,60, was diluted 4x, that is by adding threefold volume of water. Calculate the concentration of H+ ions in diluted solution:

A

0,63.10(-3) mol.dm-3

128
Q

Hydrochloric acid, c= 0,01mol.dm-3, was diluted by adding the same volume of water. What is the pH of diluted acid?

A

2,30

129
Q

Select the salt which undergoes hydrolysis in aqueous solution:

A

Fe(NO3)3

130
Q

Which substance provides alkaline aqueous solution?

A

CH3COONa

131
Q

Which substance provides alkaline aqueous solution?

A

NaHCO3

132
Q

Which substance provides alkaline aqueous solution?

A

No answer is correct

133
Q

Which aqueous solution (cocentration of each 0,1 mol.dm-3) can react with the same volume of HCI (0,1 mol.dm-3) to give solution with pH= 7,0?

A

No answer is correct

134
Q

How many valence electrons are there in phosphorus?

A

5

135
Q

Select non-transition element:

A

no answer is correct

136
Q

Select the element from the group VI (14) of periodic system:

A

tin

137
Q

Select the element from the group VI (16) of periodic system:

A

No answer is correct

138
Q

Select the transient element (d-element):

A

no answer is correct

139
Q

Select the acidic (acid-forming) oxide:

A

Mn2O7

140
Q

Select the acidic (acid-forming) oxide:

A

GrO3

141
Q

Select the amphoteric oxide:

A

AI2O3

142
Q

The volume fraction of CO2 in air is:

A

0,03%

143
Q

What is the product of the reaction between hydrochloric acid and sodium

A

Sulfane

144
Q

Select the formula of gypsum (plaster):

A

CaSO4.0,5H2O

145
Q

Determine the concentration of CaSO4 in its satutared aqueous solution, if you know the solubility product Ks (CaSO4)= 3,0.10(-5) mol2.dm-6.

A

5,5.10(-3) mol.dm-3

146
Q

The solubility of lead sulfate is given by the solubility product Ks (PbSO4)= 2,0.10(-8) mol2.dm-6. Calculate the substance amount of PbSO4 needed to make 1dm3 of saturated solution in water.

A

1,4.10(-4) mol

147
Q

Select the redox reaction:

A

Ba + Cl2 → BaCl2

148
Q

Complete the equation 2 Cu(2+) + … I → … CuI + … I2 with the lowest stoichiometric coefficients and express the coefficient of I:

A

4

149
Q

Complete the equation … SO2 (g)+ … O2 (g)→ ….. and determine how many mols of SO2 are oxidized by one mol of dioxygen:

A

2 MOL

150
Q

Complete the stoichiometric coefficients a, b, c in equation a NH3 + b Cl2 → c NH4Cl + N2:

A

8; 3; 6

151
Q

Determine the correct name of hydrocarbon:

A

2, 2, 4-trimethylpentane

152
Q

Determine the correct name of hydrocarbon:

A

2-ethylpent-1-ene

153
Q

Determine the correct name of hydrocarbon:

A

4-methyl-3-propylhex-1-ene

154
Q

Determine the correct name of hydrocarbon:

A

diphenylmethane

155
Q

Determine the correct name of the residue -CH2 -CH2-:

A

diethyl

156
Q

Vinyl is:

A

Monovalent residue of ethene

157
Q

Determine the name of CH3 -CO-O-CH2 CH2 CH2 CH3:

A

butyl acetate

158
Q

Determine the name of the given compound:

A

Bromo-2-chloro-2-methylpentane

159
Q

Determine the number of isomers of tetrachlorobenzene:

A

NO ANSWER IS CORRECT

160
Q

Determine the number of isomeric dihydroxybenzoic acids:

A

6

161
Q

Select the isomer of xylene:

A

Ethylbenzene

162
Q

Find the isomer of methyl acetate:

A

Propionic acid

163
Q

Find the isomer of cyclohexene:

A

Hexa-2,4-diene

164
Q

Diethyl ether and butan-2-ol are:

A

Constitutional isomers

165
Q

Find the tautomer of vinylalcohol:

A

Acetaldehyde

166
Q

Find cis-trans isomers:

A

Fumaric acid + maleinic acid

167
Q

Two enantiomers differ in:

A

Direction of optical rotation

168
Q

Rotation along C-C bond in a part of molecule affords:

A

Various conformations

169
Q

Select the principal feature of electrophilic reagent- an electrophil has:

A

Unoccupied valence orbital

170
Q

Nucleophilic reagent is characterized by:

A

Nonbonding electron pair

171
Q

Alkenes typically exhibit addition reactions. Select the reagent which does not react with alkenes:

A

No answer is correct, all reagents can add to alkenes

172
Q

Determine the name of hydrocarbon:

A

No answer is correct

173
Q

Select the molecular formula of styrene:

A

C8H8

174
Q

Select the molecular formula of 1,3-cyclohexadiene:

A

C6H8

175
Q

Which compound is produced by the oxidation of toluene?

A

Benzoic acid

176
Q

Select the least polar compound:

A

Cyclohexadiene

177
Q

Select the molecular formula of phenanthrene:

A

C14H10

178
Q

Select the molecular formula of naphalene:

A

No answer is correct

179
Q

Select the molecular formula of anthracene:

A

C14H10

180
Q

Select the product of reaction: but-1-ene + HCI:

A

2-chlorobutane

181
Q

Select the product of addition of water to cyclohexene:

A

No answer is correct

182
Q

Select the systematic name of chloroform:

A

NO ANSWER IS CORRECT

183
Q

How many hydrogen atmos are there in the structure depicted?

A

NO ANSWER IS CORRECT

184
Q

The compound HO-CH2-CH2-OH belongs to:

A

Primary alcohols

185
Q

Find the secondary alcohol:

A

Pentane-3-ol

186
Q

Determine the number of carbon atoms in benzylalcohol:

A

7

187
Q

Isopropylalcohol can be made by the reduction of:

A

ACETONE

188
Q

Fine the product of glycerol oxidation:

A

2,3-dihydroxypropanal

189
Q

Fine the product of benzene-1,4-diol dehydrogenation:

A

1,4 BENZOQUINONE

190
Q

Fine the product of glyceraldehyde reduction:

A

PROPANE-1, 2, 3 -TRIOL

191
Q

Fine the product of benzaldehyde reduction:

A

No answer is correct

192
Q

Which compound is easily oxidized under mild conditions:

A

CH3 CH2 CH2-CH= O

193
Q

Find the product of cyclohexanone reduction:

A

cyclohexanol

194
Q

Acetal is formed by:

A

reaction of alcohol and aldehyde

195
Q

the compound H2N-CH2-CH2-NH2 belongs to:

A

primary amines

196
Q

Determine the name of (CH3)3N:

A

Trimethylnitrile

197
Q

Find the formula of nitro compound:

A

C6 H5-O-NO2

198
Q

Find the product of nitrobenzene reduction:

A

Phenol

199
Q

Find the correct description of diazotization:

A

Diazonium salts are decomposed to phenol and nitrogen

200
Q

Find the group typical for azo-compounds:

A

-N=N-

201
Q

Select the carboxylic acid from the following acids:

A

Phthalic acid

202
Q

Find the unsaturated (alkenoic) acid:

A

No answer is correct

203
Q

The simplest dicarboxylic acid is:

A

Oxalic

204
Q

Which acid is not dicarboxylic?

A

No answer is correct, all acids are dicarboxylic

205
Q

Find the tricarboxylic acid:

A

No answer is correct

206
Q

The compound CH3-CO-CH2-CO-O-CH2-CH3 belongs to:

A

Esters

207
Q

Determine the correct name of the structure depicted:

A

Phenyl acetate

208
Q

Select the hydroxy carboxylic acid:

A

No answer is correct

209
Q

What is produced by the dehydrogenation of lactic acid?

A

Pyruvic acid

210
Q

Select the true statement: Esters can be made from hydroxy carboxylic acids

A

With acids and alcohols

211
Q

Determine the product of oxidation of lactic acid:

A

no answer is correct

212
Q

What is the common name of CH3-CO-CH2-COOH?

A

Acetoacetic acid

213
Q

Urea is derived from:

A

H2CO3

214
Q

Which compound is chiral and exhibits optical rotation?

A

Malic acid

215
Q

Find the common name for HOOC-CH2-CH(OH)-COOH:

A

No answer is correct

216
Q

Which heterocycle does not contain heteroatom of oxygen?

A

Pyrazole

217
Q

Select the name of the heterocycle depicted:

A

No answer is correct

218
Q

Select the name of the heterocycle depicted:

A

No answer is correct

219
Q

Which of the compounds is five-membrered heteroocycle with two N atmos?

A

Pyrazole

220
Q

How many nitrogen heteroatomes are there in pyrimidine?

A

2

221
Q

Select the name of the heterocycle depicted:

A

Pyrimidine

222
Q

Select the name of the heterocycle depicted:

A

indole

223
Q

Select the name of the heterocycle depicted:

A

Purine

224
Q

Find the molecular formula of indole:

A

C8 H7 N

225
Q

Finde the molecular formula of imidazole:

A

C3 H4 N2

226
Q

How many nitrogen heteroatoms are there in purine?

A

4

227
Q

Which heterocycle contains two different heteroatoms?

A

THIAZOLE

228
Q

Select the five-membered heterocycle with two N atoms?

A

PYRAZOLE

229
Q

Select the name of the heterocycle depicted:

A

PYRAN

230
Q

Select the name of the heterocycle depicted:

A

No answer is correct

231
Q

How many chiral atoms are there in acyclic (Fisher) structure of D-ribose?

A

3

232
Q

How many chiral atoms are there in acyclic (Fisher) structure of D-galactose?

A

4

233
Q

Select the name of monosaccharide:

A

B-D-ribofuranose

234
Q

Select the type of bond in polysaccharides:

A

Glycosidic

235
Q

Hydrolytic cleavage of lactose provides:

A

Glucose + galactose

236
Q

Hydrolytic cleavage of lactose provides:

A

Glucose + fructose

237
Q

Select the non-reducing saccharide:

A

No answer is correct

238
Q

Select the reducing disaccharide:

A

MALTOSE

239
Q

Select the pair of reducing sugars:

A

FRUCTOSE + MALTOSE

240
Q

Which polysaccharide is not D-glucan?

A

No answer is correct, all are D-glucans

241
Q

Which compund is not polysaccharide?

A

No answer is correct, all are polysaccharides

242
Q

Systematic name of palmitic acid is:

A

Hexadecanoic acid

243
Q

The hydrogenation of oleic acid gives:

A

Stearic acid

244
Q

Select the common name of cis,cis-9,12-octadecadienoic acid:

A

No answer is correct

245
Q

Select the common name of cis-9-octadecenoic acid:

A

Oleic acid

246
Q

Soaps are:

A

The salts of higher fatty acids

247
Q

Soaps are made by:

A

NO ANSWER IS CORRECT

248
Q

Which natural substances often contain choline?

A

Phospholipids

249
Q

Select the purine base:

A

Guanine

250
Q

Which heterocycle makes the skeleton of cytosine?

A

Pyrimidine

251
Q

What are the components of nucleosides?

A

Nitrogen base and pentose

252
Q

Which compound is not nucleoside:

A

Cytosine

253
Q

What type of bond is between base and other parts of nucleotide?

A

Glycosidic

254
Q

What type of bond is between nucleotides in nucleic acids?

A

Ester

255
Q

Transcription is the transfer of information from the nucleotide sequence..

A

No answer is correct

256
Q

Transcription is the transfer of information from the nucleotide sequence..

A

of mRNA into primary protein structure on ribosome

257
Q

Select the common name of amino acid depicted:

A

leucine

258
Q

Select the common name of amino acid depicted:

A

Serine

259
Q

Select the common name of amino acid depicted:

A

Aspartic acid

260
Q

Select the name of compound depicted:

A

Proline

261
Q

Determine the common name for 2,6-diaminohexanoic acid:

A

Lysine

262
Q

Select the common name of amino acid depicted:

A

Lysine

263
Q

Select the common name of amino acid depicted:

A

Tryptophan

264
Q

Select the common name of amino acid depicted:

A

Tyrosine

265
Q

Determine the number of chiral C atoms in serine:

A

1

266
Q

Select the correct name of dipeptide shown:

A

Leucyl-valine

267
Q

Select the correct name of dipeptide shown:

A

Lysyl-serine

268
Q

What type of bond is typical for proteins?

A

peptide

269
Q

Which interaction stabilizes the secondary structure of proteins?

A

Hydrogen bonds

270
Q

Which interaction is not involved in the stabilization of tertiary protein structure?

A

Peptide bonds

271
Q

Enzymes catalyzing the cleavage of peptide bonds in proteins belongs to:

A

Hydrolases

272
Q

Trypsin is enzyme which catalyzes:

A

No answer is correct

273
Q

Amylase, catalyzing the cleavage of glycosidic bonds in starch, belongs to:

A

Hydrolases

274
Q
A

Biology, Kjemi og fysisk (3 decks)

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