Question

The carbonate of metal x is a white solid. it decomposes when heated to form calcium oxide and yellow solid oxide.

Answer 1

Hey Dear,

There's small correction in your question. Metal carbonate will give CO2 (not CaO) on decomposition.

◆ Answer -

Metal X is lead (Pb).

◆ Explanation -

Lead oxide is white solid amorphous powder.

When lead carbonate is heated, it is decomposed to lead oxide and carbon dioxode.

PbCO3 + ∆ --> PbO + CO2

CO2 is a odourless & colorless gas. PbO presents as yellow solid.

Thanks for asking..

Answer 2

Answer:

◆ Explanation -

Lead oxide is white solid amorphous powder.

When lead carbonate is heated, it is decomposed to lead oxide and carbon dioxode.

PbCO3 + ∆ --> PbO + CO2

CO2 is a odourless & colorless gas. PbO presents as yellow solid.

Thanks for asking..

Explanation: