- 1(current)
Q. No.The potential energy (y) curve for H2 formation as a function of internuclear distance (x) of the H atoms is shown below.
The bond energy of H2 is:
| 1. | (b – a) | 2. | \(\dfrac{\left(\right. c - a \left.\right)}{2}\) |
| 3. | \(\dfrac{\left(\right. b - a \left.\right)}{2}\) | 4. | (c – a) |
Subtopic: Covalent Bond |
54%
Level 3: 35%-60%
NEET - 2020
Hints
The incorrect statements among the following for sigma- and pi- bonds formed between two carbon atoms is:
| 1. | Sigma-bond is stronger than a pi-bond |
| 2. | Bond energies of sigma- and pi-bonds are of the order of 264 KJ/mol and 347 KJ/mol, respectively |
| 3. | Free rotation of atoms about a sigma bond is allowed but not in the case of a pi-bond |
| 4. | Sigma-bond determines the direction between carbon atoms but a pi-bond has no primary effect in this regard |
Subtopic: Covalent Bond |
71%
Level 2: 60%+
AIPMT - 2003
Hints
\(P_\pi - d_\pi\) bonding is present in:
| 1. | \(NO_{3}^{-}\) | 2. | \(SO_{3}^{- 2}\) |
| 3. | \(BO^{-3}_3\) | 4. | \(CO^{-2}_3\) |
Subtopic: Covalent Bond |
87%
Level 1: 80%+
AIPMT - 2002
Hints
In NO3– ion, the number of bond pair and lone pair of electrons on nitrogen atom are respectively:
| 1. | 2, 2 | 2. | 3, 1 |
| 3. | 1, 3 | 4. | 4, 0 |
Subtopic: Covalent Bond |
69%
Level 2: 60%+
AIPMT - 2002
Hints
Hints
- 1(current)
Q. No.
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