Among the following, the compound that is electron deficient is:

1. BaCl2

2. BCl3

3. CCl4

4. PCl5

Subtopic:  Octate, Isoelectronic Species, Lewis Structure & Formal Charge |
 84%
From NCERT
AIPMT - 2000
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dπ - pπ bond is present in:

1. CO32-

2. PO4-3

3. NO3-

4. NO2-

Subtopic:  Covalent Bond |
 88%
From NCERT
AIPMT - 2000
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The compound that forms linear polymer due to H-bond is:

1. H2O 2. NH3
3. HBr 4. HCl
Subtopic:  van der Waal Force & Hydrogen Bonding |
From NCERT
AIPMT - 2000
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The number of antibonding electron pair(s) present in \(O_{2}^{2-}\)is:

1. 4 2. 3
3. 2 4. 1
Subtopic:  M.O.T |
 72%
From NCERT
AIPMT - 1998
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The correct order of dissociation energy of N2 and N2+ is:

1. N2 > N2+ 2. N2 = N2+
3. N2+> N2 4. None of the above
Subtopic:  M.O.T |
 79%
From NCERT
AIPMT - 2000
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Among the options given below, identify the Isoelectronic species:

1. CO, CN, NO+, C22–

2. CO, CN, NO, C2

3. CO+, CN+, NO, C2

4. CO, CN, NO, C2

Subtopic:  Octate, Isoelectronic Species, Lewis Structure & Formal Charge |
 87%
From NCERT
AIPMT - 2000
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The correct order in which the O-O bond length increases in the following is:

1. O3<H2O2<O2

2. O2<O3<H2O2

3. O2<H2O2<O3

4. H2O2<O2<O3

Subtopic:  M.O.T |
 70%
AIPMT - 2005
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Which of the following molecules has trigonal planar geometry:

1. NH3 2. BF3
3. PCl3 4. IF3
Subtopic:  V.S.E.P.R & V.B.T |
 87%
From NCERT
AIPMT - 2005
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Which of the following would have a permanent dipole moment:

1. BF3

2. SF4

3. SiF4

4. XeF4

Subtopic:  Polarity |
 69%
From NCERT
AIPMT - 2005
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The correct sequence of increasing covalent character is represented by:

1. BeCl2<NaCl<LiCl

2. NaCl<LiCl<BeCl2

3. BeCl2<LiCl<NaCl

4. LiCl<NaCl<BeCl2

Subtopic:  Resonance & Nature of Compounds |
 73%
From NCERT
AIPMT - 2005
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