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Quiz | Online MCQs Test

SO2 is _____ oxide.

(A) Strongly basic
(B) Strongly acidic
(C) Weakly acidic
(D) Amphoteric

Answer: (B) Strongly acidic

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Oxidation number of Mn in KMnO4 is:

In chromium plating the H2SO4 is added to Cr2(SO4)3 in order to:

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