Q.

(A) : Original colour of old lead paintings is restored using hydrogen peroxide solution.
(R) : Hydrogen peroxide oxidises black lead sulphite to white lead sulphate.

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a

Both A and R are true and R is the correct explanation of A

b

A is false but R is true

c

Both A and R are true and R is not the correct explanation of A

d

A is true but R is false

answer is A.

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Detailed Solution

PbOH2SPbS(black)  H2O2 PbSO4(white)

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