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Q. No.The correct shape and hybridisation of \(\text{BrF}_5\) is:
1. Square pyramidal and \(\text{sp}^3\text{d}^2\)
2. Square pyramidal and \(\text{d}^2\text{sp}^3\)
3. Trigonal bipyramidal and \(\text{sp}^3\text{d}^2\)
4. Trigonal bipyramidal and \(\text{d}^2\text{sp}^3\)
Subtopic: V.S.E.P.R & V.B.T |
74%
Level 2: 60%+
NEET - 2024
Hints
Which pair of the following compounds has one lone pair of electrons on the central atom?
| 1. | \(\mathrm{SF}_4, \mathrm{BrF}_5\) | 2. | \(\mathrm{SF}_4, \mathrm{ClF}_3\) |
| 3. | \(\mathrm{ClF}_3, \mathrm{XeF}_4\) | 4. | \(\mathrm{XeF}_4, \mathrm{BrF}_5\) |
Subtopic: V.S.E.P.R & V.B.T |
84%
Level 1: 80%+
NEET - 2024
Hints
Arrange the following hydrides in the order of decreasing bond angle:
A. \( \mathrm{SbH}_3 \)
B. \( \mathrm{AsH}_3 \)
C. \(\mathrm{PH}_3 \)
D. \( \mathrm{NH}_3\)
Choose the correct answer from the options given below:
A. \( \mathrm{SbH}_3 \)
B. \( \mathrm{AsH}_3 \)
C. \(\mathrm{PH}_3 \)
D. \( \mathrm{NH}_3\)
Choose the correct answer from the options given below:
| 1. | B > A > D > C | 2. | B > A > C > D |
| 3. | D > C > B > A | 4. | A > C > B > D |
Subtopic: V.S.E.P.R & V.B.T |
81%
Level 1: 80%+
NEET - 2024
Hints
Which one of the following molecules is paramagnetic?
1. \(\mathrm{H}_2\)
2. \(\mathrm{Li}_2\)
3. \(\mathrm{C_2}\)
4. \(\mathrm{O}_2\)
1. \(\mathrm{H}_2\)
2. \(\mathrm{Li}_2\)
3. \(\mathrm{C_2}\)
4. \(\mathrm{O}_2\)
Subtopic: M.O.T |
85%
Level 1: 80%+
NEET - 2024
Hints
Which one of the following statements is correct?
| 1. | BF3 has non-zero dipole moment. |
| 2. | The dipole moment of NF3 is greater than that of NH3. |
| 3. | Three canonical forms can be drawn for \(\text{CO}_3^{2-}\) ion. |
| 4. | Three resonance structures can be drawn for ozone. |
Subtopic: Polarity | Resonance & Nature of Compounds |
60%
Level 2: 60%+
NEET - 2024
Hints
Match List-I with List-II.
Choose the correct answer from the option given below:
| List-I (Compound) |
List-II (Shape/geometry) |
||
| A. | NH3 | I. | Trigonal Pyramidal |
| B. | BrF5 | II. | Square planar |
| C. | XeF4 | III. | Octahedral |
| D. | SF6 | IV. | Square Pyramidal |
| 1. | A-II, B-IV, C-III, D-I | 2. | A-III, B-IV, C-I, D-II |
| 3. | A-II, B-III, C-IV, D-I | 4. | A-I, B-IV, C-II, D-III |
Subtopic: V.S.E.P.R & V.B.T |
82%
Level 1: 80%+
NEET - 2024
Hints
Subtopic: van der Waal Force & Hydrogen Bonding |
74%
Level 2: 60%+
NEET - 2024
Hints
Which one of the following statements is incorrect related to Molecular Orbital Theory?
| 1. | The \(\pi^*\) antibonding molecular orbital has a node between the nuclei. |
| 2. | In the formation of a bonding molecular orbital, the two electron waves of the bonding atoms reinforce each other. |
| 3. | Molecular orbitals obtained from \(2P_x\) and \(2P_y\) orbitals are symmetrical around the bond axis. |
| 4. | A \(\pi-\)bonding molecular orbital has larger electron density above and below the internuclear axis. |
Subtopic: M.O.T |
52%
Level 3: 35%-60%
NEET - 2023
Hints
The correct order of dipole moments for molecules \(NH_3, H_2S , CH_4 \) and \(HF\) is :
| 1. | \(CH_4>H_2S>NH_3>HF \) |
| 2. | \(H_2S>NH_3>HF>CH_4 \) |
| 3. | \(NH_3>HF>CH_4>H_2~S \) |
| 4. | \(HF>NH_3>H_2S>CH_4\) |
Subtopic: Polarity |
67%
Level 2: 60%+
NEET - 2023
Hints
Given the following five species:
\(\mathrm{NH}_3, \mathrm{AlCl}_3, \mathrm{BeCl}_2, \mathrm{CCl}_4, \mathrm{PCl}_5 \)
The total number of these species that do not have eight electrons around the central atom in its/their outermost shell, is/are:
\(\mathrm{NH}_3, \mathrm{AlCl}_3, \mathrm{BeCl}_2, \mathrm{CCl}_4, \mathrm{PCl}_5 \)
The total number of these species that do not have eight electrons around the central atom in its/their outermost shell, is/are:
| 1. | One | 2. | Three |
| 3. | Two | 4. | Four |
Subtopic: Octate, Isoelectronic Species, Lewis Structure & Formal Charge |
61%
Level 2: 60%+
NEET - 2023
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