Which of the following is not isostructural with SiCl4

1. SCl4     

2. SO42-

3. PO43-

4. NH4+

Subtopic:  Hybridisation |
 65%
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In which of the following species the central atom has the type of hybridisation which is not the same as that present in the other three ?

1. SF4

2. I3-

3. SbCl52-

4. PCl5

Subtopic:  Hybridisation |
 57%
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Which of the following has   - bonding?

1. NO3-

2. SO32-

3. BO33-

4.CO32-

Subtopic:  Hybridisation |
 73%
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In BrF3 molecule, the lone pairs occupy equatorial positions to minimize:

1. Lone pair-bond pair repulsion.
2. Bond pair-bond pair repulsion.
3. Lone pair-lone pair repulsion and lone pair-bond pair repulsion.
4. Lone pair-lone pair repulsion.

Subtopic:  Hybridisation |
 53%
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In which one of the following molecules, the central atom said to adopt sp2 hybridisation ?

1. BeF2

2. BF3

3. C2H2

4. NH3

Subtopic:  Hybridisation |
 74%
From NCERT
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According to molecular orbital theory, arrange the nitrogen species in each list in ascending order of bond order:

1. N2- < N2 < N22-

2. N22- < N2- < N2

3. N2 < N22- <N2-

4. N2- < N22- < N2

Subtopic:  M.O.T |
 83%
From NCERT
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Among the following molecules/ions BF3, NO2-, NH2- , and H2O, the central atom is sp2 hybridized in :  

1. NO2and NH2-

2. NH2-  and H2O

3. NO2- and H2O

4. BFand NO2-

Subtopic:  Hybridisation |
 85%
From NCERT
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Which one of the following is planar ?

1. XeF4

2. XeO4

3. XeO3

4. XeO3F2

Subtopic:  Hybridisation |
 68%
From NCERT
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In PO43- ion, the formal charge on each oxygen atom and P-O bond order respectively are :

1. -0.75, 0.6

2. -0.75, 1.0

3. -0.75, 1.25

4. -3.1, 1.25

Subtopic:  Octate, Isoelectronic Species, Lewis Structure & Formal Charge |
 69%
From NCERT
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The dielectric constant of H2O is 80. The electrostatic force of attraction between Na+ and Cl- will be

1. reduced to 140 in water than in air

2. reduced to 180 in water than in air

3. will be increased to 80 in water than in air

4. will remain unchanged

Subtopic:  Ionic Bond |
 65%
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