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ICSE Class 10 Chemistry Question 3 of 23

Solved 2025 Specimen Paper ICSE Class 10 Chemistry — Question 5

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5
Question

Question 1(v)

Assertion (A): Dry hydrogen chloride gas is collected by the upward displacement of air.

Reason (R): Hydrogen chloride gas is lighter than air.

  1. Both A and R are true and R is the correct explanation of A
  2. Both A and R are true but R is not the correct explanation of A
  3. A is true but R is false
  4. A is false but R is true
Answer

A is true but R is false

Reason — Dry hydrogen chloride gas is collected by the upward displacement of air as it is heavier than air.