Question

Indicate whether the following conversions represent an oxidation, a reduction or none (neither oxidation nor reduction).
(i) $HClO_3$ to $HClO_4$ $\quad$(ii) $NH_4^+$ to $NH_3$
(iii) $NO_2$ to $N_2O_4$$\quad$ (iv) $HSO_3^-$ to $SO_4^{2-}$
(v) $H_2O_2$ to $H_2O$

(i)	(ii)	(iii)	(iv)	(v)
Oxidation	Reduction	None	None	Oxidation
Oxidation	None	None	Oxidation	Reduction
Reduction	Oxidation	Reduction	None	Reduction
Oxidation	Reduction	None	Reduction	Reduction

• A. a
• B. b
• C. c
• D. d

Answer 1

Answer: (B)

Correct answer is (b) b