Chemistry PYQ 121 of 152 · Everyday Chemistry

Which of the following is NOT correctly matched?

  1. ADesalination, Sea water
  2. BReverse osmosis, Potable water
  3. CDenaturation, Proteins
  4. DPasteurisation, Tea

UPPSC 2019

Show answer and explanation

Correct answer: (d) Pasteurisation, Tea

Explanation

Pasteurisation is the brief high-temperature heating of milk (HTST), not tea, so this pair is wrongly matched.

Desalination removes salts from sea water, and reverse osmosis forces water through a membrane to yield potable water.

Denaturation breaks the weak bonds that maintain the structure of proteins.

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