JEE MAIN - Chemistry (2021 - 16th March Morning Shift - No. 5)
Given below are two statements :
Statement I : The Eo value for Ce4+ / Ce3+ is + 1.74 V.
Statement II : Ce is more stable in Ce4+ state than Ce3+ state.
In the light of the above statements, choose the most appropriate answer from the options given below :
Statement I : The Eo value for Ce4+ / Ce3+ is + 1.74 V.
Statement II : Ce is more stable in Ce4+ state than Ce3+ state.
In the light of the above statements, choose the most appropriate answer from the options given below :
Statement I is incorrect but statement II is correct
Both statement I and statement II are correct
Both statement I and statement II are incorrect
Statement I is correct but statement II is incorrect
Explanation
Ce4+ $$\buildrel {{e^ - }} \over
\longrightarrow $$ Ce3+ E° = +1.74 V
Positive SRP and higher SRP means greater oxidising power. So, Ce4+ wants to reduce to Ce3+. Indicates Ce4+ is less stable than Ce3+.
Positive SRP and higher SRP means greater oxidising power. So, Ce4+ wants to reduce to Ce3+. Indicates Ce4+ is less stable than Ce3+.
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