Which of the following is not isostructural with SiCl4?

1. SCl4SCl4

2. SO2-4SO24

3. PO3-4PO34

4. NH+4NH+4

Subtopic:  V.S.E.P.R & V.B.T |
 69%
From NCERT
AIPMT - 2006
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A diatomic molecule, among the following species, that only has ππ bonds according to the Molecular Orbital Theory (MOT) is:

1. Be2 2. O2
3. N2 4. C2
Subtopic:  M.O.T |
 61%
From NCERT
NEET - 2019
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The number of unpaired electrons in a paramagnetic diatomic molecule of an element with atomic number 16 is:

1. 2

2. 3

3. 4

4. 1

Subtopic:  M.O.T |
 70%
From NCERT
AIPMT - 2006
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Which of the following is not a correct statement?

1. The electron-deficient molecules can act as Lewis acids.
2. The canonical structures have no real existence.
3. Every AB5 molecule does in fact have a square pyramidal structure.
4. Multiple bonds are always shorter than corresponding single bonds.

Subtopic:  V.S.E.P.R & V.B.T |
 75%
From NCERT
AIPMT - 2006
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Which of the following species has a linear shape?

1. NO-2NO2

2. SO2SO2

3. NO+2NO+2

4. O3O3

Subtopic:  Hybridisation | V.S.E.P.R & V.B.T |
 73%
From NCERT
AIPMT - 2006
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In which of the following molecules are all the bonds not equal?

1. ClF3 2. BF3
3. AlF3 4. NF3
Subtopic:  Hybridisation |
 69%
From NCERT
AIPMT - 2006
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In which of the following pairs, the two species are iso-structural?

1. SF4 and XeF4SF4 and XeF4

2. SO2-3 and NO-3SO23 and NO3

3. BF3 and NF3BF3 and NF3

4. BrO-3 and XeO3BrO3 and XeO3

Subtopic:  Hybridisation |
 74%
From NCERT
AIPMT - 2007
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The correct order of C-O bond length among CO, CO2-3CO23 , CO2 is:

1. CO2<CO2-3<COCO2<CO23<CO

2. CO<CO2-3<CO2CO<CO23<CO2

3. CO2-3<CO2<COCO23<CO2<CO

4. CO<CO2<CO2-3CO<CO2<CO23

Subtopic:  Types of Chemical Bond |
 65%
From NCERT
AIPMT - 2007
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The correct order of increasing bond order among the given is:

1. O-2O2 << NONO << C2-2C22 << He+2He+2

2. NONO << C2-2C22 << O-2O2 << He+2He+2

3. C2-2C22 << He+2He+2 << NONO << O-2O2

4. He+2He+2 << O-2O2 << NONO << C2-2C22

Subtopic:  M.O.T |
 85%
From NCERT
AIPMT - 2008
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The angular shape of ozone molecule (O3) consists of:

1. 1 sigma and 2 pi bonds
2. 2 sigma and 2 pi bonds
3. 1 sigma and 1 pi bonds
4. 2 sigma and 1 pi bonds
Subtopic:  Types of Chemical Bond | V.S.E.P.R & V.B.T |
 77%
From NCERT
AIPMT - 2008
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