MHT-CET

9. Redox reactions question bank (Chemistry)

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Q1.

Which one of the following conversions does not involve either oxidation or reduction?

(A)
$VO_2^{+} \rightarrow V_2O_3$
(B)
$Na \rightarrow Na^{+}$
(C)
$CrO_4^{2-} \rightarrow Cr_2O_7^{2-}$
(D)
$Zn^{2+} \rightarrow Zn$
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Q2.

Which of the following is $NOT$ a redox reaction?

(A)
$CH_3CHO + 2Cu(OH)_2 \longrightarrow CH_3COOH + Cu_2O + 2H_2O$
(B)
$SnCl_4 + FeCl_2 \longrightarrow FeCl_3 + SnCl_2$
(C)
$H_2SO_4 + Ca(OH)_2 \longrightarrow CaSO_4 + 2H_2O$
(D)
$C_2H_5OH + [O] \longrightarrow CH_3CHO + H_2O$
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