SELECT * FROM question_mgmt as q WHERE id=3491 AND status=1 SELECT id,question_no,question,chapter FROM question_mgmt as q WHERE courseId=9 AND subId=16 AND chapterId=252 and ex_no='4' AND status=1 ORDER BY CAST(question_no AS UNSIGNED)
Which of the statements about the reaction below are incorrect?
2PbO(s) + C(s) → 2Pb(s) + CO2(g)
(a) Lead is getting reduced.
(b) Carbon dioxide is getting oxidised.
(c) Carbon is getting oxidised.
(d) Lead oxide is getting reduced.
(i) (a) and (b)
(ii) (a) and (c)
(iii) (a), (b) and c
(iv) all
Explanation:
(a) Lead is getting reduced is incorrect as lead oxide is getting reduced.
(b) Carbon dioxide is getting oxidised is incorrect answer as carbon is getting oxidised.
(c) Carbon is getting oxidised is correct answer.
(d) Lead oxide is getting reduced is correct answer.
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