1. Which of the following should have the lowest boiling point? a. C 5 H 12 b. C

Question

1. Which of the following should have the lowest boiling point?

a. C5H12

b. C6H14

c. C8H18

d. C10H22

e. C12H26

2. Select the pair of substances in which the one with the higher vapor pressure at a given temperature is listed first.

a. C7H16, C5H12

b. CCl4, CBr4

c. H2O, H2S

d. CH3CH2OH, CH3-O-CH3

e. Xe, Kr

3. Which of the following terms refers to the resistance of a liquid to flow?

a. surface tension

b. capillary action

c. viscosity

d. adhesion

e. cohesion

4. Which of the following factors contributes to a low viscosity for a liquid?

a. low temperature

b. spherical molecular shape

c. hydrogen bonding

d. high molecular weight

e. high boiling point

5. Which of the following liquid substances would you expect to have the lowest surface tension?

a. Pb

b. CH3OCH3

c. HOCH2CH2OH

d. H2O

e. CH3CH2OH

6. Which of the following liquids is likely to have the highest surface tension?

a. Br2

b. C8H18

c. CH3OCH3

d. CH3OH

e. Pb

Explanation / Answer

1) option A is correct

2) B

3) C

4) B

5) B

6) E

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