Question

Reaction of an acid with base is known as:
A. Decomposition reaction
B. Combination reaction
C. Redox reaction
D. Neutralization reaction

Answer 1

Acid-base reaction occurs between an acid and a base. It is used for the determination of pH. For example, the reaction of an acid i.e. hydrochloric acid with a base i.e. sodium hydroxide gives sodium chloride and water.

Complete step by step answer:
Decomposition reactions can be defined as a reactant compound, which breaks down into two or more products. There are many decomposition reactions happen all around us i.e. electrolysis of water to produce oxygen and hydrogen, decomposition of carbonic acid $\left( {{{\rm{H}}_{\rm{2}}}{\rm{C}}{{\rm{O}}_{\rm{3}}}} \right)$ in soft drinks. Decomposition reactions can be either endothermic or endothermic. Decomposition reactions can be represented as:
${\rm{AB}} \to {\rm{A}} + {\rm{B}}$
Combination reactions are the opposite reaction of decomposition reactions in which two reactant molecules react to give one product. This type of reactions can be represented as:
${\rm{A}} + {\rm{B}} \to {\rm{AB}}$
Redox reaction can be defined as chemical reactions involving transfer of electrons between the two reactants participating in it. This type of reactions can be represented as:
${{\rm{A}}^0} + {{\rm{B}}^0} \to {{\rm{A}}^{ - 1}} + {{\rm{B}}^ + }$
In the above reaction you can see on the product side that there is a loss of one electron by B and gain of one electron by A.
Neutralization reactions can be defined as a chemical reaction in which an acid reacts with a base to produce a salt along with water. This type of reaction can be represented as:
${\rm{Acid}} + {\rm{Base}} \to {\rm{Salt}} + {\rm{Water}}$
So, the correct answer is “Option D”.

Note:
We need to remember one thing that the neutralization reactions are generally exothermic (not always) in nature and thus $\Delta$ $H$ values are negative. Neutralization reactions are irreversible in nature as the products formed (i.e. salt and water) cannot be converted back to the reactants.