Select Question Set:
Q. No.
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
Please attempt this question first.
Hints
Please attempt this question first.
The decrease in size from left to right in the actinoid series is greater and more gradual than that in the lanthanoid series due to:
| 1. | 4f orbitals are penultimate |
| 2. | 4f orbitals have a greater shielding effect |
| 3. | 5f orbitals have a poor shielding effect |
| 4. | 5f orbitals have a greater shielding effect |
Subtopic: Lanthanoid & Actinoids Contraction |
79%
From NCERT
NEET - 2022
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
The correct electronic configuration of Ytterbium (Yb ,atomic no- 70) is:
1. [Xe]4\(\)f125d26s2
2. [Xe]4f145d26s0
3. [Xe]4f145d16s1
4. [Xe]4f145d06s2
1. [Xe]4\(\)f125d26s2
2. [Xe]4f145d26s0
3. [Xe]4f145d16s1
4. [Xe]4f145d06s2
Subtopic: f-Block Elements- Properties & Uses |
76%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
Among the following, the element belongs to \(4d \) transition series is:
1. Cu
2. Os
3. Pd
4. Pt
1. Cu
2. Os
3. Pd
4. Pt
Subtopic: d-Block Elements- Properties & Uses |
79%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
Identify the pair of Lanthanoides with one strong oxidant and one strong reductant:
| 1. | Ce(IV), Tb(IV) | 2. | Yb(II), Eu(II) |
| 3. | Eu(IV), Lu(III) | 4. | Ce(IV), Eu(II) |
Subtopic: d-Block Elements- Properties & Uses |
71%
From NCERT
NEET - 2022
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Match the statements given in List I with the corresponding element given in List II:
| List-I (Characteristics) |
List-II (Elements) |
||
| (a) | Element that exhibits +3 oxidation state only. | (i) | Mn |
| (b) | An element that exhibits more number of oxidation states. | (ii) | Zn |
| (c) | Element which is a reducing agent in its +2 oxidation state. | (iii) | Sc |
| (d) | An element that is not considered as a transition element. | (iv) | Cr |
Choose the correct answer from the options given below:
| (a) | (b) | (c) | (d) | |
| 1. | (iii) | (iv) | (i) | (ii) |
| 2. | (iv) | (i) | (ii) | (iii) |
| 3. | (ii) | (iv) | (iii) | (i) |
| 4. | (iii) | (i) | (iv) | (ii) |
Subtopic: d-Block Elements- Properties & Uses |
83%
From NCERT
NEET - 2022
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
In the neutral or faintly alkaline medium, \(KMnO_4 \) oxidises iodide into iodate. The change in oxidation state of manganese in this reaction is from:
| 1. | +6 to +5 | 2. | +7 to +4 |
| 3. | +6 to +4 | 4. | +7 to +3 |
Subtopic: d-Block Elements- Properties & Uses |
75%
From NCERT
NEET - 2022
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Gadolinium has a low value of third ionisation enthalpy because of:
| 1. | High basic character | 2. | Small size |
| 3. | High exchange enthalpy | 4. | High electronegativity |
Subtopic: f-Block Elements- Properties & Uses |
70%
From NCERT
NEET - 2022
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
The outer electronic configuration of Gd:
( At. No. 64)
1. 4f5 5d4 6s1
2. 4f7 5d1 6s2
3. 4f3 5d5 6s2
4. 4f4 5d5 6s1
( At. No. 64)
1. 4f5 5d4 6s1
2. 4f7 5d1 6s2
3. 4f3 5d5 6s2
4. 4f4 5d5 6s1
Subtopic: f-Block Elements- Properties & Uses |
90%
From NCERT
NEET - 2013
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Dichromate ion shows the following equilibrium in an aqueous solution
\(Cr_{2}O_{7}^{2-} + H_{2}O\)
\(2CrO_{4}^{2-} + 2H^{+} \)
The value of X and Y, respectively, are:
1. 4 and 8
2. 8 and 4
3. 7 and 7
4. 4 and 4
\(Cr_{2}O_{7}^{2-} + H_{2}O\)
\(2CrO_{4}^{2-} + 2H^{+} \)The value of X and Y, respectively, are:
1. 4 and 8
2. 8 and 4
3. 7 and 7
4. 4 and 4
Subtopic: Chemistry of Mn and Cr Compounds |
69%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
Select Question Set:
© 2025 GoodEd Technologies Pvt. Ltd.