Question

Aqueous solution of NaCN is..1.turns blue litmus to red 2.turns red litmus to blue. 3.bleaches litmus 4.has no action on litmus....frnds pls explain me... which option suits correct..

Answer 1

4.No action on litmus paper.
This is because NaCN ( Sodium cyanide) is a salt .So,it is neutral that is it nor acidic nor basic.

Answer 2

Aqueous solution of NaCN 4. Has no effect on litmus because NACN or sodium cyanide is a salt and hence it has no effect on Litmus Paper. A red litmus turns blue in alkali due to the presence of hydroxyl ions while a blue Litmus turns red in acid due to the presence of hydrogen or hydronium ions. Sodium cyanide is just a salt which can be created by the process of neutralisation of acid and base and being neutral in nature has no effect on Litmus Paper