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FCERC > PCP I > Flashcards

PCP I Flashcards

1
Q

A substance that can accept a proton

A

Bronsted base

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2
Q 
The molecu methane, is often represented by the ff structural formula: 
         C
          |
     C-H-C
          |
         C
What is the actual geometric shape?
A

Tetrahedral

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3
Q

The number of electrons in an atom of an element is equal to

A

Atomic number

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4
Q

A solution used principally to control pH value of a solution to a point where selective precipitation can be made

A

Buffer solution

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5
Q

Hydrogen is common to all

A. Acids
B. Salts
C. Oxides
D. Metals

A

Acids

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6
Q

Defines an acid as a compound that dissolves in water to produce hydronium ions

A

Arrhenius

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7
Q

One gram mole of a specie is that weight of the specie equivalent to its

A. Molecular weight
B. Atomic number
C. Atomic mass
D. Number of nuetrons

A

Molecular weight

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8
Q

The mass contribution of an electron in an atom is

A

1/1837 that of a proton

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9
Q

Along a row in the periodic table elements have the same _____

A

Energy level

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10
Q

The electrons of merals are free to move in a solid. This explains why

A. Metals are unstable
B. Metals have high reflectivity
C. Metals can be easily molded
D. Metals have high conductivity

A

Metals have high conductivity

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11
Q

How many pi bonds are there in a double bond?

A

1

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12
Q

All isotopes of a given elements have the same number of

A

Protons

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13
Q

Used to express the ethanol concentration in beverages

A

Proof

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14
Q

The universal blood type donor is

A

Type O

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15
Q

Which will dissolve fastest in coffee?

A. Lump sugar in hot coffee
B. Granular sugar in a hot coffee
C. Granular sugar in cold coffee
D. Lump sugar in cold coffee

A

Granular sugar in hot coffee

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16
Q

As waterr boils at 1 atm, the temperature

A

Remains 100 degree celsius unti all is changed to vapor

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17
Q

Saltwater at 1 atm bouls at

A. Slightly higher than 100C
B. 100C
C. Less than 100C
D. 98C

A

A

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18
Q

The method of measuring the specific heat of liquids

A

Calorimetry

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19
Q

Which has the greatest rest mass?

A. Alpha particle
B. Proton
C. Neutron
D. Electron

A

Aplha particle

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20
Q

Which noble gas is 1% by volume in air?

A

Argon

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21
Q

What is the mass of an electron?

A

9.11 x 10-31

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22
Q

Also known as soda lye or caustic soda which is used in manufacture is soap?

A

Sodium hydroxide

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23
Q

Prussic acid has a formula of

A

HCN

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24
Q

An azeotropic mixture is a

A

Liquid mixture of two or more substances in which the vapor has the same composition as the liquid

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25
Q

Which of the ff compound has the highest purity?

A. Technical grade
B. USP grade
C. Reagent grade
D. Primary standard

A

Primary standard

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26
Q

What is the order of nuclear decay reactions?

A

First

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27
Q

The temperature at which a polymer changes from hard and brittle to rubbery and tough is called

A

Glass transition temperature

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28
Q

In (HAsO3)2-, what is the oxidation state of As?

A

+3

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29
Q

Which of the ff is covalently bonded?

A. MgO
B. KCl
C. NaCl
D. CaCl2

A

MgO

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30
Q

Discovered water by exploding hydrogen and oxygen

A

Cavendish

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31
Q

Buffer solution resists changes in acidity. If an acid is added to a buffer solution, the ______ remains the same.

A. pH
B. Concentration
C. Molality
D. Mole fraction

A

pH

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32
Q

Which of the ff is a heavy ductile metal?

A. Mn
B. Mg
C. Ni
D. Al

A

Ni

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33
Q

Optical pyrometer is used to

A

measure temperatures of solid objects at temperature above 700 degree celsius

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34
Q

An acid found in fruits

A. Acetic acid
B. Citric acid
C. Formic acid
D. Ascorbic acid

A

Citric acid

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35
Q

Commercially important ore of lead is

A

Galena

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36
Q

Brimstone is

A. Charcoal
B. Sulfur dioxide
C. Sulfur
D. Form of diamond

A

Sulfur

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37
Q

Teratogens can cause

A

Child birth defects

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38
Q

Which of the ff has the least polar bonding?

A. Carbon dioxide
B. Nitrogen dioxide
C. Oxygen
D. Sulfur dioxide

A

Oxygen

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39
Q

The type of intermolecular bond present in water is

A

Hydrogen bond

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40
Q

Brass in an alloy of

A

Cu and Zn

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41
Q

Which of the ff is another allotropic form of graphite?

A. Gold
B. Diamond
C. Silver
D. Bronze

A

Diamond

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42
Q

All are isoelectronic, except

A. Mg2+
B. F
C. Na+
D. Ne

A

F

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43
Q

The poorest source of hydrogen is

A. Protein, fat and carbohydrate
B. Atmosphere
C. Fossil fuel
D. Water

A

Atmosphere

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44
Q

When atoms collide, they do not lose energy. This is because

A

collision is elastic

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45
Q

From what mineral is radium obtained?

A

Pitchblende

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46
Q

A catalyst

A

Decrease the energy of activation

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47
Q

Which of the ff dies not depend on the electronic configuration?

A. Physical properties
B. Chemical properties
C. Nuclear properties
D. None of the above

A

C

48
Q

Which of the ff is not a non-cyclic hydrocarbon?

A. Methane
B. Phenol
C. Ethyne
D. Ethene

A

Phenol

49
Q

What is the color of commercially available nickel chloride?

A

Green

50
Q

Arrange Ca, Be, and Mg according to increasing atomic size

A

Be

51
Q

Cr(NH3)5SO4Cl represent _____ atoms

A

27

52
Q

Which of the ff is extrapolated from Charles law?

A. Gay Lussac’s Law
B. Dalton’s law
C. Absolute temperature scale
D. Amagat’s law

A

C

53
Q

Which of the ff exhibits a hydrogen bond?

A. Fluoromethane
B. Ethane
C. Methanol
D. Hydrogen sulfude

A

Methanol

54
Q 
Alka-seltzer is an example of
A. Antacid
B. Depressant
C. Neutralizer
D. Coolants
A

Antacid

55
Q

It is formed when CO reacts with the hemoglobin in blood

A

Carboxyhemoglobin

56
Q

The presence of which of the ff cations in solutions can not be confirmed by conducting flame test

A. Ba2+
B. Na+
C. Ca2+
D. Ni2+

A

Ni2+

57
Q

Also known as the “Toxic and Hazardous Waste Managment Act of 1990”

A

RA6969

58
Q

Tetraethyl lead is added to petrol to

A

Increase anti-knocking rate

59
Q

Deuterium is an isotope officially

A

Hydrogen

60
Q

Needed to make a silicone rubber

A

Trihydroxymeth silane

61
Q

Most of the bacteria in sewage are

A

Saphrophytic

62
Q

Which of the ff is not an amino acid?

A. Glutamic acid
B. Glutamine
C. Aspartic acid
D. Palmitic acid

A

Palmitic acid

63
Q

The compressibility factor for evey gas as its pressure approaches zero is

A

1

64
Q

The migration of colloidal particles under the influence of electric field isn’t

A

Electrophoresis

65
Q

Oil, water, and _____ will form a stable emulsion.

A. Butter
B. Starch
C. Soap
D. Marganne

A

Starch

66
Q

Which are unsaturated?

A. Alkenes and alkynes
B. Alkanes, alkenes, and alkynes
C. Alkanes and alkenes
D. Alkanes and alkyne

A

Alkenes and alkyne

67
Q

The process to transform long chain hydrocarbon into small chains

A

Cracking

68
Q

A leak from a faucet comes out in separate drops. Which of the ff is the main cause of this phenomena?

A. Gravity
B. Air resistance
C. Viscosity
D. Surface tension

A

Surface tension

69
Q

Property of a fluid to form droplets and assume the shape of a sphere and rise in a capillary tube

A

Surface tension

70
Q

Unlike other pollutants, the photochemical oxidants result entirely from atmospheric reactions and are not direct emissions from either people or nature; thus they are called

A

Secondary pollutant

71
Q

When a real gases approaches an ideal gas, compressibility facotr approaches

A

1

72
Q

The source that gives the highest %CO and NOx emission to the atmosphere

A

Transportation facilities

73
Q

Intermittent sand filters are primarily used to

A. Remove offensive odor
B. Supply fertilizers to farm
C. Oxidize putrescible matter
D. Nuetralize sludge

A

C

74
Q

The capacity of a body of water to receive, dilute and carry away waste without harming water quality

A

Assimilative capacity

75
Q

A criteria pollutant responsible for the reddish brown color of smog

A

NO2

76
Q

A waste treatment process by which biologically active growths are continuously circulated with incoming biodegrable waste in the presence of oxygen

A

Activated sludge process

77
Q

Oxygen gas is prepared in the laboratory by heating ______

A

Potassium chlorate

78
Q

Most important component of pitchblende

A

Uranium

79
Q

Two solid objects cause the height of the liquid in a graduated cylinder to rise to the same level when these are immersed in the cylinder separately. The object must have the same

A. Volume
B. Density
C. SG
D. Weight

A

Volume

80
Q

Metal oxide combines with water will produce?

A. Acids
B. Neutral salt
C. Metal hydroxide
D. Hydrogen

A

Metal hydroxide

81
Q

Which is the most common merhod of quantitative analysis?

A. Gravimetric
B. Precipitemetry
C. Volumetric
D. Gas chromatography

A

Volumetric

82
Q

Aluminum chloride is found to exist as a

A. Monomer
B. Dimer
C. Trimer
D. Tetramer

A

Dimer

83
Q

Metal oxides combines with water will produce

A. Acids
B. Base
C. Hydrates
D. Oxyacids

A

Base

84
Q

Nonmetal oxide combines with water will produce

A

Acids

85
Q

What reacts with AgNO3 to form a silver mirror?

A

Aldehydes

86
Q

What is a green vitriol?

A

Ferrous sulfate

87
Q

Which of the ff uses copper as the reagent?

A. Clemenson reduction
B. Wolf Kishner reaction
C. Coupling reaction
D. Lindlar’s catalyst

A

Clemenson reduction

88
Q

It is red in acid and yellow in alkaline

A

Methyl orange

89
Q

Methyl orange gives red color in

A. Sodium carbonae solution
B. Sodium chloride solution
C. Hydrochloric acid solution
D. Potassium hydroxide solution

A

Hydrochloric acid solution

90
Q

Which of the ff is the most soluble in water?

A. AgI
B. AgCl
C. AgBr
D. Ag2S

A

AgCl

91
Q

Sodium salts import a strong yellow color to Bunsen flame. The sodium flame is obscured by

A. Chromium glass
B. Nickel glass
C. Ruby glass
D. Cobalt glass

A

Cobalt glass

92
Q

Acidic color of methyl orange with pH range 3-4.1

A

Red

93
Q

How many base units are there in SI systems

A

7

94
Q

Isopropyl alcohol is

A. Primary alcohol
B. Secondary alcohol
C. Tertiary alcohol
D. Phenol

A

B

95
Q

Oxidation of secondary alchol results to

A

Ketone

96
Q

Sources of alkanes:

I. Natural glass
II. Petroleum
III. Quartz
IV. Limestone

A

I and II

97
Q

Oxidation of primary alcohol yields

A

Aldehydes

98
Q

Oxygen double bonded with carbon is

A. Hydroxyl
B. Carboxyl
C. Carbonyl
D. Alkyl

A

Carbonyl

99
Q

Methane is ______ at room temp

Solid,liq or gas

A

Gas

100
Q

The least number of atoms in alkynes is

A

4

101
Q

Ethylene glycol is

A. Triol
B. Diol
C. Ester
D. Phenol

A

Diol

102
Q

Another name for nylon is a/an

A. Amide
B. Polyamide
C. Ester
D. Polyester

A

Polyamide

103
Q

A carbonyl compound is one carbon and one oxygen bonded by a double bond

A

Not a question

104
Q

It is obtained from the milky secretion of various plants such as the tree Hevea brasilienses

A

Natural rubber

105
Q

Compounds with general formula (C5H6)n

A. Alkenes
B. Terpenes
C. Elastomers
D. Enantiomers

A

Terpenes

106
Q

Polymer used in making pipes, rain coats and shower curtains

A

PVC

107
Q

Polymer used in non-stick frying pans and other cooking wares

A

Teflon

108
Q

Butyric acid is found mainly in

A. Rancid butter
B. Animal fats
C. Citrus fruits
D. Cellulose

A

A

109
Q

Plastic used for synthetic leather

A

PVC

110
Q

What could be used to produce an alkene in one step?

A. An alcohol
B. An alkene
C. An acid
D. An alkali metal

A

An alkene

111
Q

A compound formula C4H5O could be any of the ff, except

A. Ether
B. Aldehyde
C. Alcohol
D. Carboxylic acid

A

D

112
Q

Which compound has the lowest boiling pt?

A. Methane
B. Ethane
C. Ethene
D. Ethyne

A

Methane

113
Q

Teflon that is commonly used in cooking utensils and insulations is made up of what monomer?

A

Tetrafluoroethylene

114
Q

All fats are

A. Acids
B. Unsaturated
C. Ketones
D. Esters

A

Esters

115
Q

Functional group common to aldehydes and carboxylic acids

A

Carbonyl group

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