Question

A deliquescent white crystalline solid hydroxide ‘X’ reacts with nitrate ‘Y’ to form another hydroxide which decomposes to give an insoluble brown layer of its oxide. X is a powerful cautery and breaks down the proteins of skin flesh to a pasty mass. X and Y are

• A. $NaOHandAgN{O}_3$
• B. $NaOHandZn(N{O}_3{)}_2$
• C. $Ca\left(OH{)}_{2}andAl\right(N{O}_3{)}_3$
• D. $Mg(OH{)}_{0}andHgN{O}_3$

Answer 1

The correct option is A $NaOHandAgN{O}_3$

NaOH reacts with $AgN{O}_3$ to form AgOH which is unstable and converts into a brown ppt of $A{g}_{2}O$.