Question

Name the type of following chemical reaction.
$N{H_4}Cl \to N{H_3} + HCl$
A.Synthesis
B.Combination
C.Displacement
D.Decomposition

Answer 1

Hint: We have to know that chemical reaction is one in which the bonds are broken inside the reactant molecules, and the formation of new bonds takes place inside the product molecules for the formation of new substances. We have to know that when chemical change occurs, the chemical reaction occurs.

Complete answer:
We have to know that when a chemical reaction takes place by the interaction of two molecules (or) more than two molecules for the formation of new products. We have to know that reactants are compounds which interact to form new substances and products are the newly formed compounds. We can classify chemical reactions into four major types namely:
Synthesis reaction/Combination reaction: We can say that the most common types of chemical reaction. We can say that synthesis reactions (or) combination reactions are those reactions where several reactants (mostly two reactants (or) more than two reactants) are combined to produce a single product.
Displacement reaction: We can say that displacement reaction is a type of chemical reaction where one of the reactants gets displayed by another reactant. We can say that the other name of displacement reaction is replacement reaction. Single displacement reaction and double displacement reactions.
Decomposition reaction: We can say that decomposition reaction is the opposite reaction of synthesis reaction. We can say that decomposition reactions are those reactions where a single reactant decomposes to form two (or) more than two products.
The given reaction is,
$N{H_4}Cl \to N{H_3} + HCl$
In this reaction, we can say that ammonium chloride is broken down to form two products ammonia and hydrogen chloride. The above reaction signifies that ammonium chloride; a single reactant is decomposed to form two products ammonia and hydrogen chloride. So, this reaction is a decomposition reaction.

So, Option (D) is correct.

Note:
We can classify double displacement reaction as neutralization reaction and precipitation reaction. In the neutralization reaction, we have to combine acid and base to form salt and water, whereas in the precipitation reaction, the anions and cations are interchanged to form two new products where one of the products formed would be precipitated.