What is the main product of the thermal decomposition of ammonium dichromate? (2

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Question: What is the main product of the thermal decomposition of ammonium dichromate? (2023)

Options:

Correct Answer: Cr2O3

Exam Year: 2023

Solution:

The thermal decomposition of ammonium dichromate produces chromium(III) oxide (Cr2O3) as the main product.

What is the main product of the thermal decomposition of ammonium dichromate? (2023)

What is the main product of the thermal decomposition of ammonium dichromate? (2023)

Step 1: Understand what thermal decomposition means. It is a chemical process where a compound breaks down into simpler substances when heated.
Step 2: Identify the compound in question, which is ammonium dichromate (NH4)2Cr2O7.
Step 3: When ammonium dichromate is heated, it breaks down into several products.
Step 4: The main product formed from this decomposition is chromium(III) oxide, which has the chemical formula Cr2O3.
Step 5: Other products may include nitrogen gas (N2) and water (H2O), but chromium(III) oxide is the primary solid product.

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