In which of the following ionization processes the bond energy increases and the magnetic behaviour changes from paramagnetic to diamagnetic?
1. \(\mathrm{O_{2}\rightarrow O_{2}^{+} }\)
2. \(\mathrm{C_{2}\rightarrow C_{2}^{+} }\)
3. \(\mathrm{NO\rightarrow NO^{+} }\)
4. \(\mathrm{N_{2}\rightarrow N_{2}^{+} }\)

Subtopic:  M.O.T |
 72%
From NCERT
NEET - 2013
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The species/pair among the following that have sp3 hybridization is: 

1. SiF4, BeH2
2. NF3,H2O
3. NF3,BF3
4. H2S, BF3
Subtopic:  Hybridisation |
 79%
From NCERT
NEET - 2013
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Identify the incorrect statements, regarding the molecule XeO4:
1. XeO4 molecule is square planar
2. There are four p\(\pi\) – d\(\pi\) bonds
3. There are four sp3 – p, \(\sigma\) bonds
4. XeO4 molecule is tetrahedral
Subtopic:  V.S.E.P.R & V.B.T |
 67%
From NCERT
NEET - 2013
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The pair of species that has the same bond order in the following is:
1. CO, NO+
2. NO, CN
3. O2, N2
4. O2, B2
Subtopic:  M.O.T |
 83%
From NCERT
NEET - 2013
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The most preferred structure among the following with the lowest energy for SOis: 

1. 2.
3. 4.

Subtopic:  Resonance & Nature of Compounds |
 73%
From NCERT
AIPMT - 2011
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In which of the following molecules the central atom does not have sp3 hybridization?

1. SF4

2. BF4-

3. NH4+

4. CH4

Subtopic:  Hybridisation |
 82%
From NCERT
AIPMT - 2010
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Some of the properties of the two species, NO3- and H3O+  are described below. Which one of them is correct?
 

1. Isostructural with the same hybridization for the central atom.
2. Isostructural with different hybridization for the central atom.
3. Similar in hybridization for the central atom with different structures.
4. Dissimilar in hybridization for the central atom with different structures.
Subtopic:  Hybridisation |
 68%
From NCERT
AIPMT - 2010
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The pairs of species of oxygen and their magnetic behaviours are given below. Which of the following represents the correct description?

1. O, O22- - Both paramagnetic
2. O2-, O22- - Both diamagnetic
3. O+, O22- - Both paramagnetic
4. O2+, O2 - Both paramagnetic

Subtopic:  M.O.T |
 81%
From NCERT
AIPMT - 2011
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Four diatomic species are listed below. Identify the correct order in which the bond order is increasing in them.
1. O2 < NO < C22– < He2+  
2. C22– < He2+ < O2– < NO  
3. He2+ < O2– < NO < C22–
4. NO < O2 < C22– < He2+  

Subtopic:  M.O.T |
 82%
From NCERT
AIPMT - 2012
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During change of O2 to O2- ion, the electron adds on which one of the following orbitals? 

1.  π orbital 

2.  σ* orbital 

3.  σ orbital

4.  π* orbital 

Subtopic:  M.O.T |
 79%
From NCERT
AIPMT - 2012
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