Question

A white coloured substance X forms yelloe coloured substance Y on heating along with evolution of gas Z which help in burning
1. Name X, Y and Z
2. Give the chemical equation​

Answer 1

Explanation:

1. x : zinc carbonate znco3. (white)

y : zinc oxide zno. (yellow)

z : carbon dioxide co2. (gas)

2. znco3. ----heat---- zno + co2