The molecule having the highest dipole moment is

1.  CO2

2.  CH4

3.  NH3

4.  NF3

Subtopic:  Polarity |
 83%
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The species which has triangular planar geometry is

1.  NF3

2.  NO3-

3.  BF4-

4.  SbH3

Subtopic:  Hybridisation |
 71%
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The correct order of stability for the following species is

1.  Li2 < He2+ < O2+ < C2

2.  C2 < O2+ < Li2 < He2+

3.  He2+< Li2< C2 < O2+

4.  O2+ < C2 < Li2 < He2+

Subtopic:  M.O.T |
 72%
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From the given structures, the correct structure(s) of F3Cl2 is are

l.  

ll.  

lll.  

1.  Only l

2.  Only ll

3.  Only lll

4.  l, ll and lll

 

Subtopic:  Hybridisation |
 63%
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The pair that is isostructural (i.e. having the same shape and hybridization) is

1.  NH3 and BF3

2.  BF4- and NH4+

3.  BCl3 and BrCl3

4.  NH3 and NO3-

Subtopic:  Hybridisation |
 88%
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Which of the following represents the correct order of dipole moment?

1.  NH3 > NF3 > H2O

2.  NH3 >  H2O >NF3

3.  H2O > NH3>NF3

4.  H2O >NF3> NH3

Subtopic:  Polarity |
 60%
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Which of the following has the shortest bond length?

1.  O2

2.  O2-

3.  O2+

4.  O2-2

Subtopic:  M.O.T |
 78%
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Lattice energy for an ionic compound is calculated by using

1.  Kirchhoff's equation

2.  Markownikoff's rule

3.  Born Haber cycle

4.  Carnot cycle

Subtopic:  Lattice & Hydration Energy |
 84%
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Assuming that Hund's rule is violated by the diatomic molecule B2, its bond order and magnetic nature will be respectively

1.  1, diamagnetic

2.  1, paramagnetic

3.  2, diamagnetic

4.  2, paramagnetic

Subtopic:  M.O.T |
 55%
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In the Lewis structure of ozone O3 the formal charge on the central oxygen atom is 

1.  +1

2.  -1

3.  0

4.  -2

 

Subtopic:  Octate, Isoelectronic Species, Lewis Structure & Formal Charge |
 62%
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