Q. No.
1. \(sp^2\) and \(sp^2\)
2. \(sp^3\) and \(sp~\)
3. \(sp~\) and \(sp^2\)
4. \(sp~\) and \(sp~\)
The correct number of σ and π bonds in the molecule is:
| σ (C - H) | σ (C - N) | σ (N - O) | π (N=O) | |
| 1. | 1 | 1 | 1 | 3 |
| 2. | 1 | 1 | 3 | 1 |
| 3. | 1 | 3 | 1 | 3 |
| 4. | 3 | 1 | 1 | 1 |
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1. \(CH_3 -C\equiv C-H\)
2. \(CH_3 -CH=CH-CH_3 \)
3. \(CH_2 = CH-CH=CH_2 \)
4. \(HC \equiv CH \)
The enolic form of ethyl acetoacetate is given below:
The number of σ and π bonds in the enolic form are respectively:
1. 18 sigma bonds and 2 pi-bonds
2. 16 sigma bonds and 1 pi-bond
3. 9 sigma bonds and 2 pi-bonds
4. 9 sigma bonds and 1 pi-bond
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Which of the following carbon atoms is most electronegative?
1. III
2. II
3. I
4. All are equally electronegative
| 1. |  |
2. |  |
| 3. |  |
4. | All of the above |
In which of the following compounds, the carbon marked with an asterisk is most electronegative?
1.
2.
3.
4.
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1. \(\sigma \) bonds -33 and \(\pi\) bonds -2
2. \(\sigma \) bonds -22 and \(\pi\) bonds -2
3. \(\sigma \) bonds -42 and \(\pi\) bonds -2
4. \(\sigma \) bonds -40 and \(\pi\) bonds -3
Correct statement among the following is:
| a. | The hybridization of carbon in H2C=O is sp2 and shape is trigonal planar. |
| b. | The hybridization of carbon in CH3F is sp3 and shape is tetrahedral. |
| c. | The hybridization of carbon in HC≡N is sp and shape is linear. |
| 1. | Only a and b statements are correct. |
| 2. | Only b and c statements are correct. |
| 3. | All statements are correct. |
| 4. | None of the statements are correct. |
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