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Q. No.Subtopic: V.S.E.P.R & V.B.T |
70%
Level 2: 60%+
AIPMT - 2006
Hints
According to Molecular Orbital Theory (MOT), which of the following diatomic species contains only \(\pi\) bonds in its ground state?
| 1. | Be2 | 2. | O2 |
| 3. | N2 | 4. | C2 |
Subtopic: M.O.T |
63%
Level 2: 60%+
NEET - 2019
Hints
Links
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 |
71%
Level 2: 60%+
AIPMT - 2006
Hints
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%
Level 2: 60%+
AIPMT - 2006
Hints
Subtopic: Hybridisation | V.S.E.P.R & V.B.T |
73%
Level 2: 60%+
AIPMT - 2006
Hints
Links
Subtopic: Hybridisation |
68%
Level 2: 60%+
AIPMT - 2006
Hints
Links
Select the pair of isostructural species.
1. SF₄ and XeF₄2. SO₃²⁻ and NO₃⁻
3. BF₃ and NF₃
4. BrO₃⁻ and XeO₃
Subtopic: Hybridisation |
75%
Level 2: 60%+
AIPMT - 2007
Hints
Find the correct increasing order of C–O bond length among CO, CO₃²⁻ , and CO₂:
1. CO₂ < CO₃²⁻ < CO2. CO < CO₃²⁻ < CO₂
3. CO₃²⁻ < CO₂ < CO
4. CO < CO₂ < CO₃²⁻
Subtopic: Types of Chemical Bond |
66%
Level 2: 60%+
AIPMT - 2007
Hints
Identify the correct increasing order of bond order among the following species:
1. O₂⁻ < NO < C₂²⁻ < He₂⁺2. NO < C₂²⁻ < O₂⁻ < He₂⁺
3. C₂²⁻ < He₂⁺ < NO < O₂⁻
4. He₂⁺ < O₂⁻ < NO < C₂²⁻
Subtopic: M.O.T |
85%
Level 1: 80%+
AIPMT - 2008
Hints
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
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 |
78%
Level 2: 60%+
AIPMT - 2008
Hints
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