On heating ammonium dichromate and barium azide separately we get

Options

A. `N_(2)` in both cases
B. `N_(2)` with ammonium dichromate and NO with barium azide
C. `N_(2)O` with ammonium dichromate and `N_(2)` with barium azide
D. `N_(2)O` with ammonium dichromate and `NO_(2)` with barium azide

Explanation

To solve the question regarding the products formed when heating ammonium dichromate and barium azide separately, we can break it down into steps:

### Step-by-Step Solution:

1. **Heating Ammonium Dichromate**:
- Ammonium dichromate \((NH_4)_2Cr_2O_7\) decomposes upon heating.
- The decomposition reaction can be represented as:
\[ (NH_4)_2Cr_2O_7 \xrightarrow{\text{heat}} N_2 + H_2O + Cr_2O_3 \]
- This reaction produces nitrogen gas \((N_2)\), water \((H_2O)\), and chromium(III) oxide \((Cr_2O_3)\).

2. **Heating Barium Azide**:
- Barium azide \((Ba(N_3)_2)\) also decomposes when heated.
- The decomposition reaction can be represented as:
\[ Ba(N_3)_2 \xrightarrow{\text{heat}} N_2 + Ba \]
- This reaction produces nitrogen gas \((N_2)\) and barium metal \((Ba)\).

3. **Summary of Products**:
- From the heating of ammonium dichromate, we obtain nitrogen gas, water, and chromium(III) oxide.
- From the heating of barium azide, we obtain nitrogen gas and barium metal.
- In both cases, nitrogen gas \((N_2)\) is a common product.

### Final Answer:
On heating ammonium dichromate, we get nitrogen gas \((N_2)\), water, and chromium(III) oxide. On heating barium azide, we get nitrogen gas \((N_2)\) and barium metal. Thus, nitrogen gas is produced in both cases.

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