The decreasing order of stability of O2,O2-,O2+ and O22-is: 

1. O2+>O2>O2->O22-

2. O22->O2->O2>O2+

3. O2>O2+>O22->O2-

4. O2->O22->O2+>O2

Subtopic:  M.O.T |
 75%
From NCERT
NEET - 2015
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Which of the following species contains an equal number of σ and π bonds?

1. HCO3-

2. XeO4

3. CN2

4. CH2(CN)2

Subtopic:  Types of Chemical Bond |
 78%
From NCERT
NEET - 2015
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Which of the following pairs of ions are isoelectronic and isostructural?

1. CO32-, SO32-

2. ClO3-, CO32-

3. SO32-, NO3-

4. ClO3-, SO32-

Subtopic:  Octate, Isoelectronic Species, Lewis Structure & Formal Charge |
 69%
From NCERT
NEET - 2015
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Which of the following options represents the correct bond order?
 
1. O2->O2<O2+
 
2. O2-<O2>O2+
 
3. O2-<O2<O2+
 
4. O2->O2>O2+

Subtopic:  M.O.T | Hybridisation |
 71%
From NCERT
NEET - 2015
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Choose the compound which has a maximum bond angle at nitrogen among the following:
 

1. NO2

2. NO2-

3. NO2+

4. NO3-

Subtopic:  V.S.E.P.R & V.B.T |
 68%
From NCERT
NEET - 2015
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The correct order of bond order in the following species is:

1. \(\mathrm{O}^{2+}_2>\mathrm{O}^+_2>\mathrm{O}^-_2\) 2. \(\mathrm{O}^{2+}_2<\mathrm{O}^-_2<\mathrm{O}^+_2\)
3. \(\mathrm{O}^{+}_2>\mathrm{O}^-_2<\mathrm{O}^{2+}_2\) 4. \(\mathrm{O}^{-}_2<\mathrm{O}^+_2>\mathrm{O}^{2+}_2\)
Subtopic:  M.O.T |
 81%
From NCERT
NEET - 2015
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A molecule among the following that has the maximum dipole moment is:

1. \(\mathrm{CO_2}\) 2. \(\mathrm{CH_4}\)
3. \(\mathrm{NH_3}\) 4. \(\mathrm{NF_3}\)
Subtopic:  Polarity |
 79%
From NCERT
AIPMT - 2014
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Which one of the following species has a plane triangular shape?

1. N3- 2. NO3-
3. NO2- 4. CO2
Subtopic:  Hybridisation |
 76%
From NCERT
AIPMT - 2014
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An electron-deficient compound among the following is:

1. (SiH3)2 2. (BH3)2
3. PH3 4. (CH3)2
Subtopic:  Octate, Isoelectronic Species, Lewis Structure & Formal Charge |
 79%
From NCERT
AIPMT - 2013
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One of the molecules listed, which does not possess a π bond, is:
 
1. H2O
2. SO2
3. NO2
4. CO2
Subtopic:  Types of Chemical Bond |
 87%
From NCERT
AIPMT - 2013
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