redox&electrochem

redox&electrochem - 1. What is the oxidation number...

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1. What is the oxidation number of chlorine in potassium chlorate, KClO 3 ? a) -1 b) +1 c) +2 d) +5 e) +6 2. The oxidation state of nitrogen given for all of the following species is correct except a) N 2 H 4 -2 b) NH 2 OH -3 c) N 2 O +1 d) N 2 0 e) HNO 2 +3 3. Which substance in the reaction below is the oxidizing agent? 5 Fe 2+ (aq) + MnO 4 (aq) + 8H + (aq) Mn 2+ (aq) + 5Fe 3+ (aq) + 4H 2 O(l) a) Fe 2+ b) MnO 4 c) H + d) Mn 2+ e) Fe 3+ 4. In the equation KMnO 4 + H 2 C 2 O 4 + H 2 SO 4 CO 2 + K 2 SO 4 + MnSO 4 + H 2 O the oxidizing agent is a) H 2 C 2 O 4 b) H 2 SO 4 c) CO 2 d) MnSO 4 e) KMnO 4 5. Balance the following oxidation-reduction reaction which occurs in basic solution: Cr(OH) 3 (s) + ClO (aq) CrO 4 2- (aq) + Cl 2 (g) When this equation is balanced using the smallest whole-number coefficients, what is the coefficient on H 2 O, and on which side of the reaction is H 2 O found, product side or reactant side? a) 2, reactant side b) 8, product side c) 12, reactant side d) 2, product side e) 14, product side 6. The following reaction occurs in acidic solutions. What is
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redox&electrochem - 1. What is the oxidation number...

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