Considering the state of hybridisation of carbon atoms, find out the molecule among the

following which is linear.

1. HC≡CH

2. CH2 = CH—CH2—C = CH

3. CH3 — CH2 — CH2 — CH3

4. CH3—CH = CH—CH3

Subtopic:  Types of Chemical Bond |
 81%
NEET - 2011
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The correct order of increasing bond length of 

C-H, C-O, C-C and C=C is

1. C-C<C=C<C-O<C-H

2. C-O<C-H<C-C<C=C

3. C-H<C-O<C-C<C=C

4. C-H<C=C<C-O<C-C

Subtopic:  Covalent Bond |
 61%
NEET - 2011
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Which of the following compounds has the lowest melting point?

1. CaBr2

2. CaI2

3. CaF2

4. CaCl2

Subtopic:  Lattice & Hydration Energy |
 64%
NEET - 2011
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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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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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