1.

(A) Conversin of PbS to PbSO _(4) consumes four moles of ozone (R ) O_(3) to O _(2) + (O)

Answer»

Both (A) and (R ) are true and (R ) is the CORRECT explanation of (A)
Both (A) and (R ) are true and (R ) is not the correct explanation of (A)
(A) is true but (R ) is FALSE
Both (A) and (R )are false

ANSWER :A


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