A glass rod dipped in ammonia solution is brought near the mouth of the HCl gas, then:
When conc. sulphuric acid is added to sodium chloride, sodium bisulphate and gas X is formed. If a rod dipped in ammonia is brought near gas X, dense white fumes of ammonium chloride are formed. What is X?
Explain why :
(a) anhydrous HCl is a poor conductor while aqueous HCl is an excellent conductor. (b) when the stopper of a bottle full of hydrogen chloride gas is opened there are fumes in the air. (c) a solution of hydrogen chloride in water turns blue litmus red and conducts electricity, while a solution of the same gas in toluene : (i) has no effect on litmus, and (ii) does not conduct electricity. (d) thick white fumes are formed when a glass rod dipped in NH4OH is brought near the mouth of a bottle full of HCl gas. (e) dry hydrogen chloride gas does not affect a dry strip of blue litmus paper but it turns red in the presence of a drop of water.
(f) hydrogen chloride gas is not collected over water.