Home PYQs UPPSC UPPSC MCQs Prelims 2001 (GS Paper I)

Question

Which one of the following pairs is not correctly matched?

  1. Fullerenes–organic compounds containing fluorine
  2. Dry Ice–Solid carbon dioxide
  3. Keratin–protein found in the outer layer of human skin
  4. Mustard gas–poisonous liquid used in chemical warfare

Answer:

Option A: Fullerenes–organic compounds containing fluorine

Detailed Solution:

The correct answer is “Fullerenes–organic compounds containing fluorine ”.

The answer is (1) Fullerenes–organic compounds containing fluorine. Fullerenes are a specific type of carbon molecule with a hollow, cage-like structure.

(2) Dry Ice - Dry ice is the solid form of CO2.

(3) Keratin - Keratin is a structural protein that makes up hair, nails, and the outer layer of skin.

(4) Mustard gas - Mustard gas is a blistering agent used in World War I.