Bright Tutorials Bright Tutorials
ICSE Class 10 Chemistry Question 31 of 63

Study of Compounds — Nitric Acid — Question 31

Back to all questions
31
Question

Question 2(2010)

A blue crystalline solid 'X' on heating gave a reddish brown gas 'Y', a gas which relits a glowing splint and a residue which is black. Identify X and Y, and write the equation for the action of heat on X.

Answer

X is Copper nitrate [Cu(NO3)2]

Y is Nitrogen dioxide gas (NO2)

2Cu(NO3)2→Δ2CuO+O2+4NO22\text{Cu(NO}_3)_2 \xrightarrow{\Delta} 2\text{CuO} + \text{O}_2 + 4\text{NO}_2