S P Singh Solutions for Chapter: Study of Compounds - Hydrogen Chloride, Exercise 1: EXERCISE-8

Explain why anhydrous $\mathrm{HCl}$ is a poor conductor while aqueous $\mathrm{HCl}$ is an excellent conductor.

Explain why when the stopper of a bottle full of hydrogen chloride gas is opened there are fumes in the air.

Explain why a solution of hydrogen chloride in water turns blue litmus red, and conducts electricity, while a solution of the same gas in toluene has no effect on litmus and does not conduct electricity.

Explain why thick white fumes are formed when a glass rod dipped in ${\mathrm{NH}}_4\mathrm{OH}$ is brought near the mouth of a bottle full of $\mathrm{HCl}$gas.

Explain why 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.

Name an element which reacts with hydrogen to form a compound which is strongly acidic in water.

Explain why dilute hydrochloric acid cannot be concentrated by boiling beyond $22.2\%$.

A solution of hydrogen chloride in water is prepared. The following substances are added to separate portions of the solution: