Question

A salt which on heating leaves metal as residue

Answer 1

Chlorine(Cl) is a salt which when heated leaves behind a metal residue

Answer 2

Hii Dear,

This question is from ICSE prelims paper. It can have multiple answers if we don't have options.

# Options are -

• Calcium carbonate
• Lead chloride
• Silver nitrate
• Zinc sulphide

◆ Answer -

Silver nitrate

● Explaination -

Silver nitrate on heating gives silver metal, oxygen gas & nitrogen dioxide gas.

2AgNO3 + ∆ --> 2Ag + O2 + 2NO2

Thanks dear. Hope this was helpful..