Question detail

In the thermal decomposition of ammonium chloride, what happens when it is heated?

Try the question, check the answer, then read the explanation to understand the curriculum point.

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At a glance

MCQ

Type

practice

Style

Topic

Reversible reactions and dynamic equilibrium

Question

A. It forms only ammonium chloride
B. It decomposes into ammonia and hydrogen chloride
C. It forms a solid residue only
D. It produces heat and light

Answer

It decomposes into ammonia and hydrogen chloride

Explanation

The correct answer is It decomposes into ammonia and hydrogen chloride. This answer directly addresses the question: In the thermal decomposition of ammonium chloride, what happens when it is heated? It matches the approved Chemistry 8462 learning objective and the linked subtopic. The other options are incorrect because they either change the rate, catalyst, reversible reaction, equilibrium, or graph context, or they do not answer the exact point being tested.

Common mistake

Confusing Thermal Decomposition

Students often describe the thermal decomposition of ammonium chloride without mentioning that it is a reversible reaction.

Always emphasize that thermal decomposition of ammonium chloride can produce both the original reactants and products, highlighting its reversible nature.

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