1.

(A) White suspension of lead (II) sulphate turns blackish on passing ozone though it. (R ) Ozone oxidises SO _(4) ^(2-)to S _(2) O _(8) ^(2-) ion.

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 :D


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