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Question

The liquid which has the highest rate of evaporation is:


A

Petrol

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B

Water

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C

Nail- polish remover

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D

alcohol

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Solution

The correct option is C

Nail- polish remover


Explanation for the correct option:

C) Nail- polish remover

  • Acetone is present in nail polish remover.
  • In the case of acetone, there is no hydrogen bonding between the molecules. As a result, they have the greatest rate of evaporation.
  • Acetone, which is found in nail polish remover, has a rapid rate of vapor pressure owing to its poor intermolecular force of attraction.

Explanation for the incorrect options:

(A) Petrol

  • Petrol is a combination of nonpolar hydrocarbons with weak London dispersion forces amongst them.
  • Petrol has modest London dispersion forces among its molecules.
  • Thus petrol has a low rate of evaporation than nail polish remover.
  • Hence this option is not correct.

(B) Water

  • Water is a strongly polar molecule having hydrogen bonding among its molecules,
  • Water has higher intermolecular interactions between its molecules in the form of hydrogen bonding.
  • Thus water has a low rate of evaporation.
  • Hence this option is not correct.

(D) alcohol

  • Alcohols have two forms of intermolecular attraction forces: hydrogen bonding and Van der Waals.
  • Thus alcohol has a low rate of evaporation than nail polish remover.
  • Hence this option is not correct.

Hence, the correct option is (C) i.e., Nail- polish remover.


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