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Chemistry > Deck 14 (261 - 280) > Flashcards

Deck 14 (261 - 280) Flashcards

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1
Q
  1. Select the correct formula for ammonium carbonate:

a. NH4CO3
b. NH3CO3
c. (NH4)2(CO3)3
d. (NH4)2CO3

A

(NH4)2CO3

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2
Q
  1. The maximum number of orbitals in the third shell is ?
A

9

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3
Q
  1. PIC
A
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4
Q
  1. Express the following quantity in litres: 15 ml
A

0.015 L

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5
Q
  1. What is the IUPAC name of the following hydrocarbon?

H2C=CH-CH=CH2

A

1,3-butadiene

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6
Q
  1. Which of the following formulas is the correct one for barium sulphide?

a. BaS2
b. Ba2S
c. BaS
d. BaSO3

A

BaS

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7
Q
  1. The structure R - CO - O - CO -R’
    is general formula for ——- ?
A

anhydride

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8
Q
  1. How many electrons is found in an atom of 12/6 C ?
A

6

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9
Q
  1. PIC
A
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10
Q
  1. When acids are dissolved in water they produce ions that help in conducting the electricity.
    This process is known as …
A

dissociation

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11
Q
  1. Name the process that converts unsaturated fatty acids to saturated fatty acids
A

hydrogenation

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12
Q
  1. Which of the diatomic element has a triple bond between its atoms?

a. chlorine
b. hydrogen
c. oxygen
d. nitrogen

A

nitrogen

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13
Q
  1. PIC
A
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14
Q
  1. To which class of organic compounds does the following compound belong?

H3C-CH2-OH

a. ether
b. aldehyde
c. alcohol
d. carboxylic acid

A

alcohol

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15
Q
  1. The concentration of H+ in solution is 1x10-4 mol.dm-3. pH of the solution is:

a. 10
b. 14
c. 4
d. 1x10-10

A

4

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16
Q
  1. Select the correct molecular formula for calcium nitrate:

a. CaNO3
b. Ca(NO3)2
c. Ca(NO2)2
d. Ca2(NO3)3

A

Ca(NO3)2

17
Q
  1. To which class of organic compounds does the following compound belong?

HC[triple bond]C-CH2-CH3

a. alkene
b. aromatic
c. alkyne
d. cycloalkane

A

alkyne

18
Q
  1. Aqueous means:

a. it swims
b. without water
c. in water solution
d. none of the previous answers

A

in water solution

19
Q
  1. PIC
A
20
Q
  1. What type of chemical bond holds the atoms together within a water molecule?

a. ionic bond
b. non-polar covalent
c. hydrogen bond
d. polar covalent

A

polar covalent bond

Chemistry (25 decks)

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