- 1(current)
Q. No.Subtopic: Group 18 - Preparation, Properties & Uses |
78%
Level 2: 60%+
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Which of the following has a maximum number of lone pairs associated with Xe?
| 1. | XeF4 | 2. | XeF6 |
| 3. | XeF2 | 4. | XeO3 |
Subtopic: Group 18 - Preparation, Properties & Uses |
86%
Level 1: 80%+
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The number of lone pairs xenon has in XeF2, XeF4, and XeF6 is, respectively:
1. 3, 2, 1
2. 2, 4, 6
3. 1, 2, 3
4. 6, 4, 2
Subtopic: Group 18 - Preparation, Properties & Uses | Interhalogen Compounds |
89%
Level 1: 80%+
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The correct decreasing order of positive electron gain enthalpy for the following inert gases is:
He, Ne, Kr, Xe
1. He > Ne > Kr > Xe
2. He > Ne > Xe > Kr
3. He > Xe > Ne > Kr
4. Ne > Kr > Xe > He
He, Ne, Kr, Xe
1. He > Ne > Kr > Xe
2. He > Ne > Xe > Kr
3. He > Xe > Ne > Kr
4. Ne > Kr > Xe > He
Subtopic: Group 18 - Preparation, Properties & Uses |
Level 3: 35%-60%
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Which of the following reactions of xenon is not feasible?
1. XeO3 + 6HF → XeF6 + 3H2O
2. 3XeF4 + 6H2O → 2Xe + XeO3 +12HF +1.5 O2
3. 2XeF2 + 2H2O → 2Xe + 4HF + O2
4. XeF6 + RbF → Rb[XeF7]
Subtopic: Group 18 - Preparation, Properties & Uses |
51%
Level 3: 35%-60%
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Match List-I with List-II:
Choose the correct answer from the options given below:
1. A-II, B-I, C-IV, D-III
2. A-II, B-IV, C-III, D-I
3. A-IV, B-II, C-III, D-I
4. A-IV, B-II, C-I, D-III
| List-I (Molecule) |
List-II (hybridization ; shape) |
||
| A. | \(\mathrm{XeO_3}\) | I. | \(\mathrm{sp^3d;}\) linear |
| B. | \(\mathrm{XeF_2}\) | II. | \(\mathrm{sp^3;}\) pyramidal |
| C. | \(\mathrm{XeOF_4}\) | III. | \(\mathrm{sp^3d^3;}\) distorted octahedral |
| D. | \(\mathrm{XeF_6}\) | IV. | \(\mathrm{sp^3d^2;}\) square pyramidal |
Choose the correct answer from the options given below:
1. A-II, B-I, C-IV, D-III
2. A-II, B-IV, C-III, D-I
3. A-IV, B-II, C-III, D-I
4. A-IV, B-II, C-I, D-III
Subtopic: Group 18 - Preparation, Properties & Uses |
91%
Level 1: 80%+
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The sum of the number of lone pairs of electrons present on the central atoms of \(\mathrm{XeO_3,XeOF_4~and~XeF_6,}\) is :
1. Two(2)
2. Five(5)
3. Three(3)
4. One(1)
1. Two(2)
2. Five(5)
3. Three(3)
4. One(1)
Subtopic: Group 18 - Preparation, Properties & Uses |
87%
Level 1: 80%+
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Match List-I with List-II:
Choose the most appropriate answer from the options given below:
1. (a) – (iii), (b) – (ii) , (c) – (iv), (d) – (i)
2. (a) – (iii), (b) – (iv) , (c) – (ii), (d) – (i)
3. (a) – (iv), (b) – (i) , (c) – (ii), (d) – (iii)
4. (a) – (iv), (b) – (ii) , (c) – (i), (d) – (iii)
| List-I (Species) |
List-II (No. of lone pairs of electrons on the central atom) |
||
| (a) | \(XeF_2\) | (i) | \(0\) |
| (b) | \(XeO_2F_2\) | (ii) | \(1\) |
| (c) | \(XeO_3F_2\) | (iii) | \(2\) |
| (d) | \(XeF_4\) | (iv) | \(3\) |
Choose the most appropriate answer from the options given below:
1. (a) – (iii), (b) – (ii) , (c) – (iv), (d) – (i)
2. (a) – (iii), (b) – (iv) , (c) – (ii), (d) – (i)
3. (a) – (iv), (b) – (i) , (c) – (ii), (d) – (iii)
4. (a) – (iv), (b) – (ii) , (c) – (i), (d) – (iii)
Subtopic: Group 18 - Preparation, Properties & Uses |
89%
Level 1: 80%+
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Determine the molecular geometry of a compound AX₄Y, based on the given conditions:
(i) All elements are from the p-block
(ii) A is a monoatomic and non-radioactive element
(iii) X is more electronegative than Y
| 1. | Square pyramidal | 2. | Tetrahedral |
| 3. | Pentagonal bipyramidal | 4. | Octahedral |
Subtopic: Group 18 - Preparation, Properties & Uses |
64%
Level 2: 60%+
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