Asked in NUMS 2019 (cancelled sitting) 2019Moderate

Which of the following is the correct order of increasing boiling point?

Correct answer: B. Methanol < Ethanol

  • A. Methanol > Ethanol
  • B. Methanol < Ethanol
  • C. Methanol = Ethanol
  • D. None of these

Explanation

The boiling point of alcohols increases as the size of the alcohol molecule increases. This is because larger molecules have more electrons and protons, which leads to stronger intermolecular forces that require more energy to break apart. Therefore, out of the options given, the correct order of increasing boiling point would be Methanol < Ethanol.

Last updated

About Properties of Liquids

Liquid behavior depends on intermolecular forces, which produce surface tension, viscosity, capillary action and a definite volume without a fixed shape. The topic also covers vapor pressure, evaporation, boiling point and the effect of temperature and external pressure, while distinguishing evaporation at the surface from boiling throughout the liquid.

Practise Liquids

350 free Liquids MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.

Exams that ask Chemistry questions like this

Chemistry is on 12 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.

Related questions