(a) 1 gram of solid sodium chloride was taken in a clean and dry test tube and concentrated sulphuric acid…
(a) 1 gram of solid sodium chloride was taken in a clean and dry test tube and concentrated sulphuric acid was added to it.
(i) Name the gas evolved in the reaction.
(ii) What will be observed when this gas is tested with (I) dry, and (II) wet blue litmus paper ? Write your conclusion about the nature (acidic/basic) of this gas.
Solution
(a)
(i) HCl gas was evolved
(ii) (I) No change in colour
(II) Wet blue litmus turns red
HCl gas is acidic in nature