Which of the following has the minimum bond length?

1. O2-

2. O22-

3. O2

4. O2+

Subtopic:  M.O.T |
 68%
From NCERT
NEET - 2011
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In which of the following pairs of molecules/ions, the central atoms have \(\mathrm{sp}^2\) hybridisation?

1. \(\mathrm{NO}^-_2 ~\mathrm{and}~ \mathrm{NH}_3\) 2. \(\mathrm{BF}_3 ~\mathrm{and}~ \mathrm{NO}^-_2\)
3. \(\mathrm{NH}^-_2 ~\mathrm{and}~ \mathrm{H_2O}\) 4. \(\mathrm{BF}_3 ~\mathrm{and}~ \mathrm{NH}^-_2\)

Subtopic:  M.O.T | Hybridisation |
 80%
From NCERT
NEET - 2010
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The correct increasing order of bond angles in the following species is:

1. \(Cl_2O<ClO_2<ClO^-_2\) 2. \(ClO_2<Cl_2O<ClO^-_2\)
3. \(Cl_2O<ClO^-_2<ClO_2\) 4. \(ClO^-_2<Cl_2O<ClO_2\)
Subtopic:  V.S.E.P.R & V.B.T |
From NCERT
NEET - 2010
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The tendency of BF3, BCl3, and BBr3 to behave as Lewis acid decreases in the sequence

1. BCl3 > BF3 > BBr3

2. BBr3 > BCI3 > BF3

3. BBr3 > BF3 > BCl3

4. BF3 > BCl3 > BBr3

Subtopic:  Covalent Bond |
 60%
NEET - 2010
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Given the following hydrocarbon:

The state of hybridisation of carbons marked 2, 3, 5 and 6 in the following hydrocarbon are, respectively :

1. sp, sp3, sp2 and sp3

2. sp3, sp2, sp2 and sp

3. sp, sp2, sp2 and sp3

4. sp, sp2 sp3 and sp2

Subtopic:  Hybridisation |
 82%
From NCERT
NEET - 2009
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NEET 2023 - Target Batch - Aryan Raj Singh

What is the dominant intermolecular force on bond that must be overcome in converting

liquid CH3OH to a gas?

1. Hydrogen bonding

2. Dipole-dipole interaction

3. Covalent bonds

4. London dispersion force

Subtopic:  Octate, Isoelectronic Species, Lewis Structure & Formal Charge |
 80%
NEET - 2009
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The angular shape of ozone molecule (O3) consists of

1. 1 sigma and 2 pi bonds

2. 2 sigma and 2 pi bonds

3. 1 sigma and 1 pi bonds

4. 2 sigma and 1 pi bonds

Subtopic:  Types of Chemical Bond | V.S.E.P.R & V.B.T |
 72%
NEET - 2008
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In the hydrocarbon

     CH3-CH=CH-CH2-CCH

     6      5     4   3      2    1

The state of hybridisation of carbons 1,3 and 5 are in the following sequence

(1) sp2, sp, sp3                       

(2) sp, sp3, sp2

(3) sp, sp2, sp3                       

(4) sp3, sp2, sp

Subtopic:  Hybridisation |
 84%
NEET - 2008
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The correct order of increasing thermal stability of K2CO3, MgCO3, CaCO3 and BeCOis:
(1) BeCO3 < MgCO3 < K2CO< CaCO3

(2) BeCO3 < MgCO3 < CaCO3 < K2CO3

(3) MgCO3 < BeCO3 < CaCO3 < K2CO3

(4) K2CO3 < MgCO3 < CaCO3 < BeCO3

Subtopic:  Lattice & Hydration Energy |
 59%
NEET - 2007
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Which among the following compounds has higher hydration energy than the lattice energy?

1. BaSO4                           

2. MgSO4

3. CaSO4                           

4. SrSO4

Subtopic:  Lattice & Hydration Energy |
 62%
From NCERT
NEET - 2007
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