Question

Question 8. (a)How is bleaching powder prepared Give its chemical equation and write
its two uses.]
(b) Why does dry HCL gas not change the colour of dry Litmus Paper?​

Answer 1

Explanation:

(a) Bleaching Powder's chemical formula is CaOCl2 and is called Calcium Oxychloride. It is prepared on dry slaked lime by chlorine gas.

(b) Colour of the litmus paper is changed by the hydrogen ions. Dry HCl gas does not contain H+ ions. ... Since in this case, neither HCl is in the aqueous form nor the litmus paper is wet, therefore, the colour of the litmus paper does not change.

Answer 2

Answer:

Bleaching Powder's chemical formula is CaOCl2 and is called Calcium Oxychloride. It is prepared on dry slaked lime by chlorine gas.