Correct Lewis structure of the nitrite ion, \(NO_{2}^{-}\) among the following is:

1. 2.
3. 4. None of the above

Subtopic:  Octate, Isoelectronic Species, Lewis Structure & Formal Charge |
 79%
From NCERT
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Match List - I with List - II

List - I List - II
(a). PCl5 (i). Square pyramidal
(b). SF6 (ii). Trigonal planar
(c). BrF5 (iii). Octahedral
(d). BF3 (iv). Trigonal bipyramidal

Choose the correct answer from the options given below:

(a). (b). (c). (d).
1. (iii). (i). (iv). (ii).
2. (iv). (iii). (ii). (i).
3. (iv). (iii). (i). (ii).
4. (ii). (iii). (iv). (i).
Subtopic:  V.S.E.P.R & V.B.T |
 77%
From NCERT
NEET - 2021
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The incorrect statements among the following are-

(a) NaCl being an ionic compound is a good conductor of electricity in the solid-state
(b) In canonical structure, there is a difference in the arrangement of atoms
(c) Hybrid orbitals form stronger bonds than pure orbitals
(d) VSEPR theory can explain the square planar geometry of XeF4
 
1. (a) and (b) only 2. (b) and (c) only
3. (c) and (d) only 4. (b) and (d) only
Subtopic:  Resonance & Nature of Compounds | V.S.E.P.R & V.B.T |
 69%
From NCERT
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In NO3 ion, the number of bond pair and lone pair of electrons on nitrogen atom are respectively:

1. 2, 2 2. 3, 1
3. 1, 3 4. 4, 0
Subtopic:  Covalent Bond |
 67%
From NCERT
AIPMT - 2002
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In a regular octahedral molecule, MX6, the number of X–M–X bonds at 180º is:

1. Two 2. Six
3. Four 4. Three
Subtopic:  Hybridisation |
 70%
From NCERT
AIPMT - 2004
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In PO4-3, formal charge on every oxygen atom and P-O bond order respectively are:
1.  -0.75 and 1.25
2.  -0.5 and 2
3.  1 and 1.5
4.  -0.75 and 2

Subtopic:  Octate, Isoelectronic Species, Lewis Structure & Formal Charge |
 72%
From NCERT
AIPMT - 1998
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Resonance is not shown by-
1. \(C_6 H_6\)
2. \(CO_2\)
3. \(CO_3^{2-}\)
4. \(SiO_2\)
Subtopic:  Resonance & Nature of Compounds |
 59%
From NCERT
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The shape of \(XeF^+_5 \) will be 
1. Square pyramidal 
2. Square planar 
3. Trigonal bipyramidal 
4. Octahedral 
Subtopic:  Hybridisation |
 70%
From NCERT
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From the following, the incorrect assertion with respect to dipole moments of the species given is: 
1. \(CH_3Cl > CHCl_3 \)
2. \(CH_2Cl_2 = CCl_4 \)
3. \(NH_3 > NF_3 \)
4. \(BF_3 = CO_2 \)
Subtopic:  Polarity |
 62%
From NCERT
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From the perspective of molecular orbital theory, which statement is false?

1. Be2 is not a stable molecule.

2. He2 is not stable but He2+ is expected to exist.

3. Bond strength of N2 is maximum amongst the homonuclear diatomic molecules belonging to the second period.

4. The order of energies of molecular orbitals in N2 molecule is: 

σ2s<σ2s*<σ2pz<(π2pxπ2py)
<(π2px*π2py*)<σ2pz*

Subtopic:  M.O.T |
 75%
From NCERT
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