Question

Explain four differences types of chemical reaction with suitable examplw?

Answer 1

$\mathfrak{\large{\underline{\underline{Answer:-}}}}$

The four types of chemical reaction are as following :-

1) Combination reaction :- The reaction in which two or more elements combined to form a single product is called combination reaction.

Ex:-⭐Fe(s) + S(s) → FeS(s)

2) Decomposition reaction :- The reaction in which a single reactant decomposes in to two or more simpler products.

Ex:- ⭐ CaCO3(s) → CaO(s) + CO2(g)

3) Displacement reaction :- The reaction in which an active metal displaces the less reactive metal from its salt solution.

Ex:- ⭐Mg(s) + Cu(NO3)2(aq) → Mg(NO3)2(aq) + Cu(s)

4)Double displacement reaction :- The reaction in which the two compound exchange their ions and one of the product formed is insoluble known as precipitate.

Ex:- ⭐HCl(aq) + NaOH(aq) → NaCl(aq) + H2O (l)

Answer 2

Answer:

1) combination reaction~such a reaction in which a single product is formed from two or more reactants is known as a combination reaction.

Ex-♥️CaO(quicklime)+H2O(water)---->Ca(OH)2 (slaked lime)

2) decomposition reaction ~it is that reaction in which a single reactant breaks down to give simpler products.

Ex-♥️2FeSO4 (s)------->Fe2O3 (s)+SO2(g)+SO3(g).

3)displacement reaction~ Those reactions in which one element takes place of another element in a compound, are known as displacement reaction.

Ex-♥️Zn(s) +CuSO4(aq)----->ZnSO4 (aq)+Cu(s) .

4)double displacement reaction~ Those reactions in which there is an exchange of ions between the reactants are called double displacement reaction.

Ex-♥️Na2SO4(aq)+BaCl2(aq)---->BaSO4(s)+2NaCl(aq).

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