Question

Give one example each of displacement is decomposition and combination reaction with explanation

Answer 1

2. Decomposition Reaction :

A chemical reaction in which a single compound splits into two or more simple substances is called a decomposition reaction.

When mercuric oxide is heated in a crucible, the orange-red powder begins to darken and a silver mirror begins to deposit on the cooler parts of the crucible. This is mercury. If we hold a glowing splint near the crucible, it can relight. This shows that the gas evolved during the reaction is oxygen.

2HgO(s) 2Hg(s) + O2 ↑

Mercuric oxide Mercury Oxygen

3.Displacement Reaction:

Reactions in which the more reactive element displaces the less reactive element from its compound are called displacement reactions.

Zinc displaces copper in copper sulphate to form zinc sulphate.

Zn(s) + CuSO4(aq) → ZnSO4(aq) + Cu(s)

Zinc Copper sulphate Zinc sulphate

Hope this helps you

Mark my answer as brainliest

Answer 2

1 when highly reactive element displace with low reactive element is known as displacement reaction.
example:-Zn +CuSo4 -------> ZnSo4 + Cu
2.the reaction in which reactant breaks down into two or more compounds is called as decomposition reaction
example:-2H2O ---------> 2H2 + O2
3.the reaction in two or more reactant form new compound is known as combustion reaction
example:-2H2 + O2--------> 2H2O
pls mark as brainlst