Question

Statements given below are incorrect. Write
the correct statements.
1. Lead nitrate crystals on strong heating
decompose to form lead dioxide, nitrogen
dioxide and oxygen gas.
2. The reaction between magnesium
oxygen is an endothermic reaction.
3. The decomposition of ammonium chlorid
into ammonia and oxygen is an exotherm
reaction.
4. Copper carbonate on strong heating leaves
behind a residue which is green in colour.
5. Ammonia gas and HCI gas react to form
gaseous ammonium chloride.​

Answer 1

Answer:

1.lead nitrate crystals on strong heating, decompose to form lead oxide , nitrogen dioxide and oxygen gas

2. the reaction between magnesium and oxygen is a exothermic reaction.

3. the decomposition of ammonium chloride into ammonia and chlorine is a exothermic reaction.

4. copper carbonate on strong heating leaves behind a residue which is brown in colour

5. Ammonia gas and HCl react to form ammonium chloride.

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