SATHEE: Redox Reactions And Electrochemistry Ques 754

Redox Reactions And Electrochemistry Ques 754

Question: Which of the following is not a disproportionate reaction-

Options:

A) $4 K C l O_{3} \to_{}^{} 3 K C l O_{4} + K C l$

B) $2 C u^{+} \to_{}^{} C u^{2 +} + C u$

C) $5 X^{-} + X O_{3}^{-} + 6 H^{+} \to_{}^{} 3 X_{2} + 3 H_{2} O$

D) $4 P + 3 N a O H + 3 H_{2} O \to$ $P H_{3} + 3 N a H_{2} P O_{2}$

Show Answer

Answer:

Correct Answer: C

Solution:

[c] The change in oxidation numbers are [a] $C l : +, 5 \to + 7$ and - 1
[b] $C u : + 1 \to + 2$ and 0 [c] $X : - 1 \to 0$
[d] $P : 0 \to - 3$ and + 1 In [a], [b] and [d], a single oxidation number (of the reactant atom) undergoes a simultaneous increase and decrease, but in [c], two different oxidation numbers of an atom in the reactants are not involved.

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Redox Reactions And Electrochemistry Ques 754

Question: Which of the following is not a disproportionate reaction-

Options:

Answer:

Solution:

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