Question

What will be the products on heating Barium Nitrate Ba(NO\(_3\))\(_2\)?

• A. BaO, NO\(_2\), O\(_2\)
• B. Ba, NO\(_2\), O\(_2\)
• C. Ba(NO\(_2\))\(_2\), O\(_2\)
• D. BaO, N\(_2\)O

Hint:

Group 2 metal nitrates decompose on heating to give metal oxides, nitrogen dioxide (NO\(_2\)), and oxygen (O\(_2\)). This is a common trend used in thermal decomposition problems.

Answer 1

The Correct Option is A

Barium nitrate is a metal nitrate of a group 2 element. Upon heating, metal nitrates decompose to form the corresponding metal oxide, nitrogen dioxide, and oxygen gas.
The general decomposition reaction for group 2 metal nitrates (like Ba(NO\(_3\))\(_2\)) is: \[ 2Ba(NO_3)_2 \xrightarrow{\Delta} 2BaO + 4NO_2 + O_2 \] Explanation of the products:
BaO: The metal oxide formed from the decomposition of the nitrate.
NO\(_2\): A brown toxic gas, produced from the breakdown of the nitrate ion.
O\(_2\): Molecular oxygen released during the decomposition process. Therefore, heating barium nitrate gives: \[ \boxed{\text{BaO, NO}_2, \text{O}_2} \]