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Assertion:- The colour of old lead paint...

Assertion:- The colour of old lead paintings can be restored by washing with dilute solution of `H_(2)O_(2)`
Reason:- Black lead sulphide is oxidised by `H_(2)O_(2)` to white lead sulphate.

A

Statement-1 is true, Statement-2 is True , Statement-2 is a correct explanation for statement-5

B

Statement-1 is True, Statement-2 is True, Statement-2 is not a correct explanation for statement-5

C

Statement-1 is True, Statement -2 is False

D

Statement -1 is False , Statement-2 is True.

Text Solution

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The correct Answer is:
A
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Assertion:- The colour of old lead paintings can be retored by washing with dilute solution of H_(2)O_(2) Reason:- Black lead sulphide is oxidised by H_(2)O_(2) to white lead sulphate.

Assertion (A) : The colour of old lead painting can be restored by washing with dilute solution of H_2O_2 . Reason (R) : Black lead sulphide is oxidised by H_2O_2 to white lead suphate.

Old lead paintings are generally washed with dilute solution of H_(2)O_(2) in order to regain their colour. Why?

H_(2)O is oxidised to O_(2) by :