Dear students solve following MCQ based upon Redox reaction . Submit your Answers in comment section. 1. What will be the absolute oxidation number of Cl in Bleaching Powder – a. 0 , 0 b 1,1 c. +1 & -1 d. None of these 2 . What is the oxidation number of Br in the BrO 3 - ion? a. -1 b. 1 c. +5 d. -5 e. +7 3. What kind of reaction is Cl 2 à Cl - + ClO 2 - (aside from unbalanced)? a. An oxidation b. A reduction c. A disproportionation d. An impossible reaction e. None of these 4. In the reaction HNO 2 + I - à NO + I 2 what atoms are being oxidized and reduced, respectively? a. O, I b. O, I c. I, N d. N, I e. N, O 5. Oxidation number of Sulphur in H 2 SO 5 is – a. 8 b. 6
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