Question

On heating blue coloured powder copper nitrate in a boiling test tube copper oxide oxygen gas and a brown gas x is formed
Write a balanced equation

Answer 1

CU(NO3)2+O2----------CUO+O2+NO2

Answer 2

HEY mate here is your answer

the Brown gas so released is nitrogen oxide gas.

always remember this because in 10th class it can be asked.

hope it helps you