Question

3011) · Assertion(A): Gas bubbles are observed when dilute hydrochloric acid is added to sodium
carbonate.
Reason(R): Carbon dioxide is released in this reaction
A) Both A and R are true and R is correct explanation of the A.
B) Both A and R are true but R is not the correct explanation of the A.
C) A is true but R is false.
D) A is false but R is true
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Answer 1

Answer:

a option is correct

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Answer 2

Both A and R are true but R is not the correct explanation of the A. (option A)

- In the given chemical reaction,the reactants are sodium carbonate (Na2CO3) and diluted hydrochloric acid (HCl).

- And,we know that sodium carbonate is a base and hydrochloric acid is an acid.

- Now,when an acid and a base reacts with each other,a salt and water are produced through a neutralization reaction.

Chemical equation :

Na2CO3 + 2HCl ---> 2Nacl + H2O + CO2

- The produced carbon dioxide in the above mentioned reaction is the reason behind the bubbling.