Question

Identify the type of reaction :-

$\sf{NaOH (aq) + HCl (aq) \rightarrow NaCl (aq) +H_2O (l)}$

(a) Double Displacement
(b) Precipitation Double Displacement
(c) Neutralization Fouble Displacement
(d) None of the above

Give your answer with a proper reason.

Class - 10
Chapter - Chemical Reactions and Equations​

Answer 1

(C.) Neutralisation and double displacement

Answer 2

$\huge\bold{Question :-}$

Identify the type of reaction :-

$\sf{NaOH (aq) + HCl (aq) \rightarrow NaCl (aq) +H_2O (l)}$

$\huge\bold{Answer}$

$\sf\color{red}Option \: C$

It is a neutralisation reaction between a strong acid(HCl) and strong base(NaOH) which is usually accompanied by release of large amount of heat.

$\bold{\boxed{Just\: for\: Information:}}$

• For these kind of reactions(strong acid and strong base), the heat released is approximately 13.6kcal(approx 57.32 kilojoule).
• But if you replace HCl by a weak acid like acetic acid or NaOH by a weak base like NH4OH or both, then some heat is required to be given to the reaction so that the weak acid(or base) dissociates completely.
• Hence in such neutralisation reactions, heat released is a little lesser.

$\sf\color{red}Hope\: that\: helps.$