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Solution


Q.

When a small amount of acid is added to water, the phenomena which occur are


(A) Dilution
(B) Neutralisation
(C) Formation of H3O+ ions
(D) Salt formation

 

The correct statements are :
1 (A) and (C)  
2 (B) and (D)  
3 (A) and (B)  
4 (C) and (D)  

Ans.

(1)

When a small amount of acid is added to water, the phenomena which occur are dilution and formation of H3O+ ions. When water is added, a concentrated acid is turned into a dilute acid. This process is called dilution of acid. A dilute acid is an aqueous solution in which acid undergoes ionisation and releases hydronium ions (H3O+)