Question 2
Name the substance which on treatment with chlorine yields bleaching powder.

Q. Give the name and formula of a substance which on treatment with chlorine yields bleaching powder.

Q. The amount of chlorine obtained from a sample of bleaching powder by treatment with excess of dilute acid or $C{O}_2$ is called available chlorine.

Q. $5.7$ g of bleaching powder was suspended in $500$ mL of water. $25$ mL of this suspension on treatment with $KI$ and $HCl$ liberated iodine which reacted with $24.35$ mL of $\frac{N}{10}$ $N{a}_2{S}_2{O}_3$. Calculate the percentage of available chlorine in bleaching powder.

Q. Substance A is yellowish-white in colour and releases chlorine gas on reaction with dilute hydrochloric acid. The substance A is _______.