JEE Main Chemistry question

Bleaching powder is obtained by the interaction of chlorine and

(A)Dry calcium oxide
(B)Dry slaked limeCorrect
(C)conc. solution of
(D)dilute solution of

Answer: (B)

Solution

Bleaching powder is formed when chlorine gas is passed over dry slaked lime: Ca(OH)_2 + Cl_2 \to CaOCl_2 + H_2O; the reagent must be dry slaked lime, not plain calcium oxide (A, which would need to be slaked first)

See the full step-by-step solution

Create a free account to read the complete working, and practise questions like this in a timed test.

Create a free account

Question ID VK-137692