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A dense white fume is formed when ammonia gas reacts with

Chemistry
JAMB 2005

A dense white fume is formed when ammonia gas reacts with

  • A. O2(g)
  • B. H2(g)
  • C. Cl2(g)
  • D. HCl(g)
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Correct Answer: Option D
Explanation

When ammonia (NH\(_3\)) gas reacts with hydrogen chloride (HCl) gas, they form solid ammonium chloride (NH\(_4\)Cl), observable as white fumes or clouds. 

The reaction is a neutralization reaction where ammonia, acting as a base, accepts a proton (H+) from the acid, hydrogen chloride. 

                                                NH\(_3\)(g) + HCl(g) → NH\(_4\)Cl(s) 

There is an explanation video available below.


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Explanation Video

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