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WAZZAP > Quiz 19 > Flashcards

Quiz 19 Flashcards

1
Q
  1. Which element can take part in hydrogen bonding?

F

O

N

all of the above

A

all of the above

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2
Q
  1. Only dispersion forces are present in _____.

HF

C6H6

CO

C2H5OH

A

C6H6

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3
Q
  1. Polarizability is highest for ______.

CH4

H2

CCl4

H2S

A

CCl4

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4
Q
  1. A compound which hydrogen bonds is ______.

BeH2

CH4

CH3COOH

C2H6

A

CH3COOH

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5
Q
  1. The hydrocarbon having the lowest boiling point is _____.

C4H10

CH4

C6H6

C2H6

A

CH4

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6
Q
  1. Which of the following has the lowest boiling point?

CH3COCH3

CH3OCH3

CH3COOH

CH3CHO

A

CH3OCH3

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7
Q
  1. The boiling point of a liquid depends on ______.

external pressure

molecular attraction

molecular weight

all of the above

A

all of the above

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8
Q
  1. The vapor pressure of a liquid is _______.

inversely proportional to temperature

directly proportional to temperature

directly proportional to boiling point

directly proportional to melting point

A

directly proportional to temperature

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9
Q
  1. The vapor pressure of a liquid depends on the _______.

amount of liquid

volume of the liquid

temperature of the liquid

surface area of the liquid

A

temperature of the liquid

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10
Q
  1. Which of the following factors will not affect the rate of vaporization of the liquid?

temperature

amount of liquid

intermolecular forces

surface area

A

amount of liquid

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11
Q
  1. What is the name of the following alkene? CH3—CH2—CH = CH—CH3

3-pentene

2-pentane

pentene-2

2-pentene

A

2-pentene

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12
Q
  1. What is the name of the following compound?CH3—CH2—CH(OH)—CH3

3-butanol

2-butanol

3-pentanol

2-pentene

A

2-butanol

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13
Q
  1. Which is not a correctly named alkyl group?

C2H5 – ethyl

C3H7—propyl

C4H10– butyl

CH3 – methyl

A

butyl

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14
Q
  1. What is the name of the following compound? CH3—CH2—CH(CH3)—CH(CH3)—CH2—CH3

3,4-dimethylhexane

3-butylbutane

3-methyl 4-ethylpentane

3,5-octane

A

3,4-dimethylhexane

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15
Q
  1. What is the basic formula of an alkyne of n carbon atoms?

CnH2n+2

CnH2n

CnH2n-2

CnHn

A

CnH2n-2

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16
Q
  1. What characterizes a starch?

it is a collection of polysaccharides in plants

it is a cellulose

it is a trisaccharide

it has six carbons

A

it is a collection of polysaccharides in plants

17
Q
  1. CH2O is the empirical formula for

amino acids

proteins

Carbohydrates (sugar)

aldehydes

DNA and RNA

A

Carbohydrates (sugar)

18
Q
  1. A student observed that a small amount of acetone sprayed on the back of the hand felt very cool compared to a similar amount of water. Your explanation of this phenomena be that

all organic compound do this

acetone has a lower viscosity and transfers heat quanta better

water has a higher heat capacity than acetone, therefore retaining more heat

the higher vapor pressure of acetone results in more rapid evaporation and heat loss

the observed effect is not real and is only imagined

A

the higher vapor pressure of acetone results in more rapid evaporation and heat loss

19
Q
  1. When a pot of water boils on the stove, small bubbles form at the bottom of the pan and rise to the surface. What is inside these bubbles?

steam

hydrogen gas

oxygen gas

a vacuum

air

A

steam

20
Q
  1. A document issued by the DENR secretary indicating that the proposed project will cause significant negative environmental impact.

Environmental Impact Statement

Environmental Impact Assessment

Environmental Compliance Certificate

Environmental Critical Project

A

Environmental Compliance Certificate

21
Q
  1. In testing a substance for the presence of glucose, it should be heated with

Benedict’s solution

Burrough’s solution

iodine solution

glycagon

A

Benedict’s solution

22
Q
  1. What is produced when calcium carbide is mixed with water?

acetylene

ethylene

propylene

methane

A

acetylene

23
Q
  1. Acids are substances that increase the concentration of the positive ions characteristic of the solvent

The above statement is correct

The above statement is incorrect

Acids cannot be defined this way

Is partially true

A

Acids cannot be defined this way

24
Q
  1. In the chemical reaction N2 + 3H2 2NH3 at equilibrium point

Equal volumes of N2 and H2 are reacting

Equal masses of N2 and H2 are reacting

The reaction has stopped

The same amount of ammonia is formed as is being decomposed into N2 and H2

A

The same amount of ammonia is formed as is being decomposed into N2 and H2

25
Q
A

WAZZAP (31 decks)

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