Intramolecular hydrogen bonding is present in 
1. 
2. 
3.  HF
4. 
Subtopic:  van der Waal Force & Hydrogen Bonding |
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From NCERT
NEET - 2024
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Match List I with List II.
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
Choose the correct answer from the option given below:

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 |
 80%
NEET - 2024
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Identify the correct answer.
1. BF3 has non-zero dipole moment.
2. 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 |
 61%
From NCERT
NEET - 2024
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Which one of the following molecules is paramagnetic?

1. \(\mathrm{H}_2\)
2. \(\mathrm{Li}_2\)
3. \(\mathrm{C_2}\)
4. \(\mathrm{O}_2\)
Subtopic:  M.O.T |
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From NCERT
NEET - 2024
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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:
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 |
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NEET - 2024
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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 |
 69%
From NCERT
NEET - 2024
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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 |
 74%
From NCERT
NEET - 2024
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The correct order of energies of molecular orbitals of N2 molecule is:
1. \( \sigma \text { 1s }<\sigma^* \text { 1s }<\sigma 2 s<\)
\(\sigma^* 2 s<\left(\pi 2 p_x=\pi 2 p_y\right)<\)
\(\left(\pi^* 2 p_x=\pi^* 2 p_y\right)<\sigma 2 p_z<\sigma^* 2 p_z\)
2. \( \sigma \text { 1s }<\sigma^* \text { 1s }<\sigma 2 s<\sigma^* 2 s<\)
\(\left(\pi 2 p_x=\pi 2 p_y\right)< \)
\(\sigma 2 p_z<\left(\pi^* 2 p_x=\pi^* 2 p_y\right)<\sigma^* 2 p_z \)
3. \( \sigma \text { 1s }<\sigma^* \text { 1s }<\sigma 2 s<\sigma^* 2 s<\sigma 2 p_z<\)
\( \left(\pi 2 p_x=\pi 2 p_y\right)<\)
\(\left(\pi^* 2 p_x=\pi^* 2 p_y\right)<\sigma^* 2 p_z \)
4. \( \sigma \text { 1s }<\sigma^* \text { 1s }\)
\(<\sigma 2 s<\sigma^* 2 s<\sigma 2 p_z< \)
\( \sigma^* 2 p_z<\left(\pi 2 p_x=\pi 2 p_y\right)<\)
\(\left(\pi^* 2 p_x=\pi^* 2 p_y\right) \)
Subtopic:  M.O.T |
 70%
From NCERT
NEET - 2023
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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:
1. 1 2. 3
3. 2 4. 4
Subtopic:  Octate, Isoelectronic Species, Lewis Structure & Formal Charge |
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From NCERT
NEET - 2023
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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 |
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From NCERT
NEET - 2023
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