Question

which of the following do not involve oxidation-reduction? ​

Answer 1

Answer:

2. 2Cul2 Cul + 12

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Answer 2

ANSWER:

(3) NH₄Cl + NaOH → NaCl + NH₃ + H₂O

EXPLANATION:

(1) Rb (Rubidium) is getting oxidised from 0 to +1 and

H (Hydrogen) is reduced from +1 to 0

(2) Cu (Copper) is getting reduced from +2 to +1 and

I (Iodine) is oxidised from -1 to 0

(3) No change in the oxidation state.

(4) Mg (Magnesium) is getting oxidised from 0 to +2

N (Nitrogen) is reduced from 0 to -3

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