Lanthanoid ions that act as strong oxidising or reducing agents (Ce4+, Tb4+, Eu2+)

1. A.
   Statement I is true, statement II is false
2. B.
   Statement I is false, statement II is true
3. C.
   Both Statement I and Statement II are false
4. D.
   Both Statement I and Statement II are true

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1. A.
   Both statement I and statement II are correct
2. B.
   Statement I is incorrect but statement II is correct
3. C.
   Both statement I and statement II are incorrect
4. D.
   Statement I is correct but statement II is incorrect

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1. A.
   It will not prefer to undergo redox reactions.
2. B.
   It will prefer to gain electron and act as an oxidizing agent
3. C.
   It will prefer to give away an electron and behave as reducing agent
4. D.
   It acts as both, oxidizing and reducing agent.

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1. A.
   D only
2. B.
   C only
3. C.
   C and D only
4. D.
   A and B only

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1. A.
   ${Ce}^{4 +}$ and ${Eu}^{2 +}$
2. B.
   ${Ce}^{4 +}$ and ${Tb}^{4 +}$
3. C.
   ${Ce}^{3 +}$ and ${Ce}^{4 +}$
4. D.
   ${Eu}^{2 +}$ and ${Ce}^{4 +}$

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1. A.
   Statement I is false but Statement II is true
2. B.
   Both Statement I and Statement II are true
3. C.
   Statement I is true but Statement II is false
4. D.
   Both Statement I and Statement II are false

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1. A.
   ${Lu}^{3 +}$
2. B.
   ${Gd}^{3 +}$
3. C.
   ${Eu}^{2 +}$
4. D.
   ${Ce}^{4 +}$

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1. A.
   ${Lu}^{3 +}$
2. B.
   ${Eu}^{2 +}$
3. C.
   ${Tb}^{4 +}$
4. D.
   ${Ce}^{3 +}$

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