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Q. No.Subtopic: V.S.E.P.R & V.B.T |
85%
Level 1: 80%+
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Given below are two statements:
In light of the above statements, choose the correct answer:
1. Both Statement I and Statement II are True.
2. Both Statement I and Statement II are False.
3. Statement I is True but Statement II is False.
4. Statement I is False but Statement II is True.
| Statement I: | SF6 and NO are examples of the expanded octet and odd electron molecules respectively. |
| Statement II: | BeCl2 molecules have hybrid orbitals with 50 % s character as well as a linear geometry. |
In light of the above statements, choose the correct answer:
1. Both Statement I and Statement II are True.
2. Both Statement I and Statement II are False.
3. Statement I is True but Statement II is False.
4. Statement I is False but Statement II is True.
Subtopic: V.S.E.P.R & V.B.T |
62%
Level 2: 60%+
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Match the molecules in List-I with their corresponding bond angles in List-II and choose the correct option.
1. A ‐ III, B ‐ I, C ‐ IV, D ‐ II
2. A ‐ III, B ‐ I, C ‐ II, D ‐ IV
3. A ‐ III, B ‐ II, C ‐ IV, D ‐ I
4. A ‐ II, B ‐ I, C ‐ IV, D ‐ III
| List-I (Molecule) |
List-II (Bond Angle) |
||
| A. | H2O | (I) | \(107.8^{\circ}\) |
| B. | NH3 | (II) | \(93.6^{\circ}\) |
| C. | CH4 | (III) | \(104^{\circ}\) |
| D. | PH3 | (IV) | \(109.5^{\circ}\) |
2. A ‐ III, B ‐ I, C ‐ II, D ‐ IV
3. A ‐ III, B ‐ II, C ‐ IV, D ‐ I
4. A ‐ II, B ‐ I, C ‐ IV, D ‐ III
Subtopic: V.S.E.P.R & V.B.T |
64%
Level 2: 60%+
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Consider the given species and their respective hybridizations:
A. \(\mathrm{NO}_3{ }^{-}-\mathrm{sp}^2 ~\)
B. \(\mathrm{NH}_4{ }^{+}-\mathrm{sp}^2 ~~\)
C. \(\mathrm{NO}_2{ }^{+}-\mathrm{sp} ~\)
The correct combination(s), out of the above, is/are:
A. \(\mathrm{NO}_3{ }^{-}-\mathrm{sp}^2 ~\)
B. \(\mathrm{NH}_4{ }^{+}-\mathrm{sp}^2 ~~\)
C. \(\mathrm{NO}_2{ }^{+}-\mathrm{sp} ~\)
The correct combination(s), out of the above, is/are:
| 1. | A and B only | 2. | B and C only |
| 3. | A and C only | 4. | A only |
Subtopic: Hybridisation |
79%
Level 2: 60%+
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The set of molecules having zero dipole moment is:
1. \(\mathrm{NF}_3, \mathrm{CO}_2, \mathrm{CCl}_4 \)
2. \(\mathrm{BF}_3, \mathrm{H}_2 \mathrm{S}, \mathrm{CCl}_4 \)
3. \(\mathrm{BF}_3, \mathrm{CO}_2, \mathrm{CCl}_4\)
4. \(\mathrm{BF}_3, \mathrm{CO}_2, \mathrm{CHCl}_3 \)
1. \(\mathrm{NF}_3, \mathrm{CO}_2, \mathrm{CCl}_4 \)
2. \(\mathrm{BF}_3, \mathrm{H}_2 \mathrm{S}, \mathrm{CCl}_4 \)
3. \(\mathrm{BF}_3, \mathrm{CO}_2, \mathrm{CCl}_4\)
4. \(\mathrm{BF}_3, \mathrm{CO}_2, \mathrm{CHCl}_3 \)
Subtopic: Polarity |
85%
Level 1: 80%+
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In compounds of type \(ECl_3\), where E = B, P, As or Bi, the angles Cl –E– Cl for different E are in the order:
1. B > P = As = Bi
2. B > P > As > Bi
3. B < P = As = Bi
4. B < P < As < Bi
1. B > P = As = Bi
2. B > P > As > Bi
3. B < P = As = Bi
4. B < P < As < Bi
Subtopic: Hybridisation |
54%
Level 3: 35%-60%
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Molecule that form H-bond is:
| 1. | \(\mathrm{NH}_3 \) | 2. | \(\mathrm{R}-\mathrm{CN} ~\) |
| 3. | \(\mathrm{R}-\mathrm{O}-\mathrm{R} ~\) | 4. | \(\mathrm{R}-\mathrm{Br} \) |
Subtopic: van der Waal Force & Hydrogen Bonding |
86%
Level 1: 80%+
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Identify the species where the central atom strictly obeys the octet rule:
1. XeF4
2. SF4
3. SiF4
4. [ClF4]−
1. XeF4
2. SF4
3. SiF4
4. [ClF4]−
Subtopic: Octate, Isoelectronic Species, Lewis Structure & Formal Charge |
77%
Level 2: 60%+
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Which of the following molecules or ions have one or more lone pairs of valence electrons on their central atom?
| 1. | \(\mathrm{AlCl_4^-}\) | 2. | \(\mathrm{CO_2}\) |
| 3. | \(\mathrm{PCl_4^+}\) | 4. | \(\mathrm{SO_2}\) |
Subtopic: Octate, Isoelectronic Species, Lewis Structure & Formal Charge |
84%
Level 1: 80%+
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Which molecule is correctly matched with its shape as predicted by VSEPR theory?
| 1. | PCl3 | Trigonal pyramidal |
| 2. | OF2 | Linear |
| 3. | CIF3 | Trigonal planar |
| 4. | SF6 | Hexagonal |
Subtopic: V.S.E.P.R & V.B.T |
60%
Level 2: 60%+
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