Question

Which compound could serve as a reactant in a neutralization reaction?(1) NaCl (3) CH3OH(2) KOH (4) CH3CHO

Answer 1

KOH could serve as a reactant in a neutralization reaction 

Answer 2

Answer: (2) $KOH$

Explanation: When an acid reacts with the base then it undergoes neutralization to form a salt and water.

An acid is a substance that ionizes in the water to give hydrogen ion and have pH less than 7.

$HX\rightarrow H^++X^-$

A base is a substance that ionizes in the water to give hydroxide ion and has pH more than 7.

$MOH\rightarrow M^++OH^-$

Thus $KOH$ being a base can be a reactant in neutralization reaction.

$NaCl$ being a salt can be a product in a neutralization reaction.