The type of radicals that can be formed as intermediates during monochlorination of 2-methylpropane is-
1. Primary and tertiary radicals
2. Two types of primary radicals
3. Primary and secondary radicals
4. Two types of tertiary radical
If the relative reactivity of , and hydrogen's towards chlorination is 1:3.8:5. The percentages of monochlorinated product obtained from 2-methylbutane is:
1. % of 1o monochlorinated product =
2. % of monochlorinated product = 35.2 %
3. % of monochlorinated product = 23.1 %
4. % of monochlorinated product = 33.2 %
Toluene refluxed with Br2 in the presence of light generates mainly:
1. p-Bromotoluene.
2. Benzyl bromide.
3. o-Bromotoluene.
4. Mixture of o- and p-bromotoluene.
What type of mechanism governs the chlorination reaction of methane?
1. Elimination
2.
3. Free radical
4.
The products formed after ozonolysis of Pent-2-ene are:
1. | Ethanal and Methanal | 2. | Ethanal and Propanal |
3. | Ethanal and Butanal | 4. | Ethanal and Ethanol |
Which isomer of pent-2-ene will have a higher boiling point and why?
1. Cis - less polar than trans
2. Trans - more polar than cis
3. Cis - more intermolecular forces
4. Trans - more dipole-dipole interactions
Incorrect statement regarding aromaticity among the following is:
1. | The compound should have a planar structure. |
2. | The π–electrons of the compound are completely delocalized in the ring. |
3. | The total number of π–electrons present in the ring should be equal to (4n + 2) π electrons, where n = 0, 1, 2 … etc. This is known as Huckel’s rule. |
4. | The compound should have a linear structure. |
Non aromatic molecule(s)among the following is/are :
1. | ![]() |
2. | ![]() |
3. | ![]() |
4. | All of the above |
The catalyst used in the conversion of benzene into acetophenone is:
1. Anhydrous AlCl3
2. HNO3
3. HCl
4. Heating
The effect of branching on an alkane is:
1. It increases its boiling point
2. It decreases its boiling point
3. It doesn’t change its boiling point
4. None of the above