Question

Solution of sodium hydrogen carbonate is alkaline in nature:
(A) True
(B) False

Answer 1

Hint: To answer this question, you must recall the nature of sodium hydrogen carbonate or sodium bicarbonate, whether it is acidic or alkaline. If the aqueous solution of a substance has a pH value less than 7, then the substance is acidic and if the aqueous solution of the substance has a pH value more than 7, then the substance is alkaline in nature. A pH value 7 represents a neutral solution. Sodium hydrogen carbonate is formed from weak acid and strong base.

Complete step by step solution:
We know that sodium hydrogen carbonate is a salt composed of sodium, carbon, oxygen and hydrogen atoms. It is formed when only one mole of sodium metal or sodium hydroxide reacts with carbonic acid. Sodium bicarbonate is a crystalline, white colored odorless salt and is bitter in taste. It is commonly known as baking soda, or cooking soda, bread soda and bicarbonate of soda. It readily undergoes decomposition to give carbon dioxide gas and thus is used in a variety of applications like baking and in pharmaceutical industries.
We know that sodium bicarbonate is formed when one mole of sodium hydroxide reacts with one mole of carbonic acid. Thus, we can say that it is a salt of a weak acid and strong base. Thus, the salt will be alkaline and so will be its solution.
The given statement is true.
The correct answer is A.

Note:
The salt formed after the neutralization reaction between a strong acid and strong base results in the formation of a neutral salt. The salt formed when a strong acid is neutralized by a weak base results in the formation of an acidic salt.