Multiple choice

Petroleum is a mixture of hydrocarbons and boiling point of hydrocarbon increases with

  1. increase in the number of hydrogen atoms

  2. increase in the number of carbon atoms

  3. decrease in the number of carbon atoms

  4. decrease in the number of hydrogen atoms
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

As the molecular number of carbons increases, molar mass of the compound increases and hence b.p. also increases.

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