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
1. | 4 | 2. | 8 |
3. | 12 | 4. | 16 |
1. | sp2 | 2. | spd2 |
3. | sp2d | 4. | sp3 |
The correct order of increasing bond length of C-H, C-O, C-C and C=C is:
1.
2.
3.
4.
The following compounds are given for reference
(1) CH3-CH2–
(2) H2C=CH–
(3) HC≡C–
The increasing order of basic strength is:
1. (2)>(1)>(3)
2. (3) >(2) >(1)
3. (1) >(3) >(2)
4. (1) >(2)>(3)
The correct order regarding the electronegativity of hybrid orbitals of carbon is:
1.
2.
3.
4.