Login
Register
All Subjects Topic Wise MCQs
PPSC Papers (All Departments)
OTHERS Past Papers FPSC, NTS etc.
The process by which a substance absorbs moisture upon exposure to atmosphere is called:

The process by which a substance absorbs moisture upon exposure to atmosphere is called:

  • (A) Deliquescence
  • (B) Efflorescence
  • (C) Dehydrogenation
  • (D) Desalination
  • Deliquescence is when a substance, normally a salt, attracts moisture from the air to the point that it dissolves to a liquid solution. This is because the vapor pressure of the solution is lower than the water vapor pressure of the air. Some notable substances are calcium chloride, magnesium chloride, and sodium hydroxide.
  • Efflorescence: The opposite process, where a hydrated salt loses water to the atmosphere.
  • Dehydrogenation: The removal of hydrogen from a molecule.
  • Desalination: The removal of salt, usually to make seawater potable.
Facebook
WhatsApp
Related MCQs:

 ‘NATO’ is an abbreviation of:

March 18, 2026 No Comments
  • (A) North Atlantic Treaty Organization
  • (B) Non-Aligned Treaty Organization
  • (C) Non-Aligned Trading Organization
  • (D) North American Transport Organization

You May Like

Comment

All Subjects

PPSC PAST PAPERS

PPSC

SPSC PAST PAPERS

FPSC PAST PAPERS

KKPSC PAST PAPERS

Explore Kazmi MCQs for comprehensive practice and preparation in various subjects. Boost your knowledge with expertly curated multiple-choice questions and detailed solutions.

Facebook Youtube

Site Pages.

Top Categories.

Site Links.

© 2026 Kazmi MCQs. Content owned by Kazmi.

You cannot copy content of this page

Scroll to Top