Hydrogen chloride gas turns blue litmus red.

Solve the crossword puzzle with the help of the given hints.

Across:

$1$. Gas released when a metal carbonate reacts with an acid.

$3$. This indicator gives pinkish red colour in acidic solution.

$10$. Mixture of sodium bicarbonate and tartaric acid to make cakes.

$11$. Common name of dilute solution of acetic acid. 

$13$. This indicator gives magenta pink colour in alkaline solution.

$14$. Acids and bases react to give _____ reaction.

$15$. Plaster of Paris is obtained by heating this substance.

Down:

$1$. The gas released in the process of electrolysis of aqueous sodium chloride.

$2$. Change in colour of litmus in sodium hydroxide solution ($3$ words).

$4$. Chemical name of washing soda.

$5$. Medicine for acidity and indigestion.

$6$. Common name of sodium bicarbonate.

$7$. Change in colour of litmus in hydrochloric acid. ($3$ words) 

$8$. Gas released when an active metal reacts with an acid.

$9$.  Common name of calcium sulphate hemihydrate. 

$12$. Acids and bases react to produce _____ and water.