1. | sp2 and sp2 | 2. | sp2 and sp3 |
3. | sp and sp2 | 4. | sp3 and sp3 |
1. | 4 | 2. | 5 |
3. | 7 | 4. | 3 |
a. | In crystallization, an impure compound is dissolved in a solvent in which it is highly soluble at room temperature. |
b. | In the positive resonance effect(+R), the transfer of electrons is always from an atom or substituted group attached to the conjugated system. |
c. | One of the technological applications of fractional distillation is to separate different fractions of crude oil in the petroleum industry. |
1. | (a) and (b) only | 2. | (b) and (c) only |
3. | (a) and (c) only | 4. | (a), (b), and (c) |
The correct arrangement of the following carbocations in decreasing order of their stability is:
(i) | ![]() |
(ii) | ![]() |
(iii) | ![]() |
(iv) | ![]() |
Consider the resonance structure of CH3COOCH3 as follows:
The correct statement among the following is-
1. | I and II cannot be the major contributors to the real structure of CH3COOCH3 |
2. | I and II can be the major contributors to the real structure of CH3COOCH3 |
3. | I is more stable than II. |
4. | None of the above |
In the above compound, at which bond proton attack fastest?
1. A
2. B
3. C
4. D
1. | ![]() |
2. | ![]() |
3. | ![]() |
4. | ![]() |
1. (1) > (2) > (3) > (4)
2. (2) > (3) > (4) > (1)
3. (4) > (2) > (3) > (1)
4. (1) > (3) > (2) > (4)