Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • NCERT
  • On heating blue coloured powder of copper (II) nitrate in a boiling tube, copper oxide (black), oxygen gas and a brown gas X is formed (a) Write a balanced chemical equation of the reaction. (b) Identity the brown gas X evolved.

On heating blue coloured powder of copper (II) nitrate in a boiling tube, copper oxide (black), oxygen gas and a brown gas X is formed

(a) Write a balanced chemical equation of the reaction.

(b) Identity the brown gas X evolved.

(c) Identity the type of reaction.

(d) What could be the pH range of aqueous solution of the gas X?

Answers (1)

Blue coloured powder of copper (II) nitrate = Cu(NO_3)_2

(a) 2Cu(NO_3)_2 \rightarrow 2CuO + 4NO_2 + O_2

(b) The brown gas X is nitrogen dioxide, NO_2

(c) Reaction involved is Thermal decomposition.

(d) pH< 7 because NO_2 dissolves in water to form acidic solution (pH range below 7).

Posted by

infoexpert21

View full answer

Similar Questions

Latest Question