- 1(current)
Q. No.Given below are two statements:
| Assertion (A): | The ground state electronic configuration of nitrogen is
 |
| Reason (R): | Electrons are filled in orbitals as per the Aufbau principle, Hund's rule of maximum spin multiplicity, and Pauli's principle. |
| 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. | (A) is False but (R) is True. |
Subtopic: Pauli's Exclusion Principle & Hund's Rule | AUFBAU Principle |
86%
Level 1: 80%+
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Hints
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Match List-I with List-II:
1. A–I, B–II,III , C–III, and D–IV
2. A–III, B–III, C–II and IV, D–I and IV
3. A–I, B–II, C–III and IV, D–IV
4. A–III, B–III, C–IV, D–I and IV
| List-I | List-II | ||
| A. | Photon | I. | Value is 4 for N shell |
| B. | Electron | II. | Probability density |
| C. | \(\psi^2\) | III. | Exhibits both momentum and wavelength |
| D. | Principal quantum number | IV. | Always positive |
1. A–I, B–II,III , C–III, and D–IV
2. A–III, B–III, C–II and IV, D–I and IV
3. A–I, B–II, C–III and IV, D–IV
4. A–III, B–III, C–IV, D–I and IV
Subtopic: AUFBAU Principle |
85%
Level 1: 80%+
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Hints
Which scenario leads to the maximum exchange of energy?
1. \(d^1\)
2. \(d^3\)
3. \(d^5\)
4. \(d^4\)
1. \(d^1\)
2. \(d^3\)
3. \(d^5\)
4. \(d^4\)
Subtopic: Pauli's Exclusion Principle & Hund's Rule | AUFBAU Principle |
85%
Level 1: 80%+
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Hints
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A sample set of electrons have the following quantum numbers:
Arrange them in the increasing order of energy from lowest to highest:
| (i) | \(n\) = 4, \(l\) = 1 |
| (ii) | \(n\) = 4, \(l\) = 0 |
| (iii) | \(n\) = 3, \(l\) = 2 |
| (iv) | \(n\) = 3, \(l\) = 1 |
Arrange them in the increasing order of energy from lowest to highest:
| 1. | (iv) < (ii) < (iii) < (i) |
| 2. | (ii) < (iv) < (i) < (iii) |
| 3. | (i) < (iii) < (ii) < (iv) |
| 4. | (iii) < (i) < (iv) < (ii) |
Subtopic: AUFBAU Principle |
85%
Level 1: 80%+
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Hints
Please attempt this question first.
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Q. No.
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