Which reaction is not a redox reaction? [2024]

Question

Which reaction is not a redox reaction? [2024]

Smart Achievers · Accepted Answer

(4)

$\overset{+ 2}{Ba} \overset{- 1}{{Cl}_{2}} + {\overset{+ 1}{Na}}_{2} \overset{+ 6 - 2}{{SO}_{4}} \to \overset{+ 2}{Ba} \overset{+ 6}{S} \overset{- 2}{O_{4}} + 2 \overset{+ 1}{Na} \overset{- 1}{Cl}$

Here no change in oxidation numbers take place. Hence it is not a redox reaction.

Solution

Q.
Which reaction is not a redox reaction [2024]

1 $Z n + C u S O_{4} \to Z n S O_{4} + C u$

2 $2 K C l O_{3} + I_{2} \to 2 K I O_{3} + C l_{2}$

3 $H_{2} + C l_{2} \to 2 H C l$

4 $B a C l_{2} + N a_{2} S O_{4} \to B a S O_{4} + 2 N a C l$

Ans.
(4)

$\overset{+ 2}{Ba} \overset{- 1}{{Cl}_{2}} + {\overset{+ 1}{Na}}_{2} \overset{+ 6 - 2}{{SO}_{4}} \to \overset{+ 2}{Ba} \overset{+ 6}{S} \overset{- 2}{O_{4}} + 2 \overset{+ 1}{Na} \overset{- 1}{Cl}$

Here no change in oxidation numbers take place. Hence it is not a redox reaction.

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Solution

Q. Which reaction is not a redox reaction [2024]

1 Zn+CuSO4→ZnSO4+Cu

2 2KClO3+I2→2KIO3+Cl2

3 H2+Cl2→2HCl

4 BaCl2+Na2SO4→BaSO4+2NaCl

Ans. (4) Ba+2Cl2-1+Na+12SO4+6-2 →Ba+2S+6O4-2+2Na+1Cl−1 Here no change in oxidation numbers take place. Hence it is not a redox reaction.