Question

5g of zinc is treated separately with an excess of 

(a) dilute hydrochloric acid and 

(b) aqueous sodium hydroxide. 

The ratio of the volumes of H₂ evolved in these two reactions is : 

(1) 1 : 4 

(2) 1 : 2 

(3) 2 : 1 

(4) 1 : 1

Answer 1

Answer is (4)

The ratio of the volume of H₂ is 1 : 1

Answer 2

Answer is (4)