The gas that can be collected by downward displacement of air is

Chemistry JAMB 2017

The gas that can be collected by downward displacement of air is

  • chlorine
  • sulphur (IV) oxide
  • carbon (IV) oxide
  • ammonia checkmark

The correct answer is: D

Explanation

Upward delivery works well for hydrogen and ammonia, which are both less densed than air. Sometimes, they are collected over water.

There is an explanation video available .

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