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Q. No.Subtopic: d-Block Elements- Properties & Uses |
62%
From NCERT
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The point of dissimilarity between lanthanides and actinides is:
| 1. | Three outermost shells are partially filled. |
| 2. | They show oxidation state of +3 (common). |
| 3. | They are called inner transition elements. |
| 4. | They are radioactive in nature. |
Subtopic: f-Block Elements- Properties & Uses |
70%
From NCERT
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| Assertion (A): | Cr(VI) in the form of dichromate in an acidic medium is a strong oxidising agent, than MoO3 and WO3. |
| Reason (R): | Mo(VI) and W(VI) are found to be more stable than Cr(VI). |
| 1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
| 3. | (A) is true but (R) is false. |
| 4. | Both (A) and (R) are false. |
Subtopic: d-Block Elements- Properties & Uses |
77%
From NCERT
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| Assertion (A): | In transition elements, ions of the same charge in a given series show progressive decrease in radius with increasing atomic number. |
| Reason (R): | Transition elements exhibit variable oxidation states. |
| 1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
| 3. | (A) is true but (R) is false. |
| 4. | Both (A) and (R) are false. |
Subtopic: d-Block Elements- Properties & Uses |
86%
From NCERT
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Subtopic: d-Block Elements- Properties & Uses |
89%
From NCERT
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A pair of ions have the same magnetic moment among the following :
1. \(Cu^{2+}, Ti^{3+}\)
2. \( Ti^{3+}, Ni^{2+}\)
3. \( Ti^{4+}, Cu^{2+}\)
4. \( Mn^{2+}, Cu^{2+}\)
Subtopic: d-Block Elements- Properties & Uses |
82%
From NCERT
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Select the element with the highest second ionization enthalpy from the following options.
1. Mn
2. Fe
3. Cr
4. V
Subtopic: d-Block Elements- Properties & Uses |
73%
From NCERT
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| Assertion(A): | Aquated copper (I) cation undergoes disproportionation as: 2Cu+(aq.)→Cu2+(aq.)+Cu |
| Reason(R): | Hydration energy of Cu2+ is higher than that of Cu+ which compensates second ionization energy of Cu. |
| 1. | Both (A) and (R) are True and (R) is a correct explanation of (A). |
| 2. | Both (A) and (R) are True but (R) is not a correct explanation of (A). |
| 3. | (A) is True but the (R) is False. |
| 4. | (A) is False but (R) is True. |
Subtopic: d-Block Elements- Properties & Uses |
87%
From NCERT
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Diamagnetic lanthanoid ion among the following is:
(At nos. Ce = 58, Sm = 62, Eu = 63, Yb = 70)
1. Sm2+
2. Eu2+
3. Yb2+
4. Ce2+
(At nos. Ce = 58, Sm = 62, Eu = 63, Yb = 70)
1. Sm2+
2. Eu2+
3. Yb2+
4. Ce2+
Subtopic: f-Block Elements- Properties & Uses |
65%
From NCERT
AIPMT - 2013
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Actinoids exhibit more number of oxidation states than lanthanoids. It is because of:
| 1. | The greater metallic character of the lanthanoids than that of the corresponding actinoids. |
| 2. | More energy difference between 5f and 6d orbitals than that between 4f and 5d orbitals. |
| 3. | The lesser energy difference between 5f and 6d orbitals than that between 4f and 5d orbitals. |
| 4. | More active nature of the actinoids. |
Subtopic: d-Block Elements- Properties & Uses | f-Block Elements- Properties & Uses | Lanthanoid & Actinoids Contraction |
80%
From NCERT
AIPMT - 2011
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NEET 2025 - Target Batch
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