Question

What change in colour is observed when white silver chloride is left exposed to sunlight? State the type of chemical

reaction in this change. (1)

Directions (for Q.2 & Q.3) : In the following questions, a statement of assertion (A) is followed by a statement of

reason (R). Mark the correct choice as:

(a) Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A)

(b) Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A)

(c) Assertion (A) is true but reason (R) is false.

(d) Assertion (A) is false but reason (R) is true​

Answer 1

Answer:

Silver chloride (AgCl) is white in colour and elemental silver (Ag) is grey in colour. Hence, the colour change observed when white silver chloride is left exposed in sunlight is from white to grey and the type of chemical reaction is photolytic decomposition reaction or photolysis.