AP EAPCET 19-Aug-2021 Shift 2 Paper

Section: Chemistry

Question : 138 of 160

Marks: +1, -0

Assertion(A): The colour of old lead paintings can be restored by washing them with a dilute solution of H2O2.
Reason(R): Hydrogen peroxide reduces PbS to Pb

Both A and R are true and R is a correct explanation for A
Both A and R are true but R is not a correct explanation for A
A is true, R is false
A is false, R is true

Validate

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