The number of resonating structures exhibited by CO32- ion are :

1. 2

2. 3

3. 4

4. 5

Subtopic:  Resonance & Nature of Compounds |
 79%
From NCERT
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The condition(s) required for the linear combination of atomic orbital is :

1. Combining atomic orbitals must have the same or nearly the same energy.
2. Combining atomic orbitals must have proper orientations to ensure that the overlap is maximum
3. Both 1 and 2
4. None of the above

Subtopic:  M.O.T |
 89%
From NCERT
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Hybridizations of C1, and C2 in the structure given below are


1. C1= sp3 , C2 = sp2 

2. C1 = sp3 , C2 = sp3 

3. C1 = sp2 , C2 = sp2 

4. None of the above

Subtopic:  Hybridisation |
 91%
From NCERT
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Hybridization of C1 and C2 in the structure given below are
 
     
 
 
1.  C1 = sp2 , C2 = sp3 
 
2.  C1 = sp3  , C2 = sp2
 
3.  C1 = sp3  , C2 = sp3
 
4. C1 = sp2  , C2 = sp2
Subtopic:  Hybridisation |
 89%
From NCERT
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Hybridization of C1, C2 , and C3 in the structure given below are
 
 
1. C1 = sp2 , C2 = sp2 , C3 = sp2
 
2. C1 = sp3 , C2 = sp3 , C3 = sp2
 
3. C1 = sp3 , C2 = sp2 , C3 = sp2
 
4. C1 = sp3 , C2 = sp2 , C3 = sp3
Subtopic:  Hybridisation |
 89%
From NCERT
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H2 molecule on the basis of valence bond theory is formed due to 

1. Attractive forces being more than the repulsive forces

2. Attractive forces being less than the repulsive forces

3. No force of attraction

4. Only repulsive force

Subtopic:  V.S.E.P.R & V.B.T |
 83%
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The correct Lewis structure of acetic acid is:
 

1. 2.
3. 4. None of the above.
Subtopic:  Octate, Isoelectronic Species, Lewis Structure & Formal Charge |
 83%
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The incorrect statement from the following is:

1.  The sigma bond forms via head-on overlap and the pie bond forms via sidewise overlapping of orbitals.
2. s and p orbitals are combined to form a sigma bond as well as a pie bond.
3.  Hybrid orbitals only form sigma bonds.
4.  Sigma bonds are stronger than pie bonds.

Subtopic:  Hybridisation |
 62%
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The significance of the octet rule is:

1. To determine the stability of atoms.

2. To find the hybridization of elements.

3. To calculate the number of lone pairs.

4. None of the above.

Subtopic:  Octate, Isoelectronic Species, Lewis Structure & Formal Charge |
 72%
From NCERT
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The relation between hydrogen bond and the van der Waals forces is -

1. Both the bonds have equal strength
2. Hydrogen bonds are weaker than van der Waals forces
3. Hydrogen bonds are stronger than van der Waals forces
4. None of the above

Subtopic:  Types of Chemical Bond |
 84%
From NCERT
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