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.
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 %
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
The reaction intermediate involved in the addition of \(\mathrm{HBr}\) to propene in the absence of peroxides is:
1. | \(H^+\) | 2. | \(Br^-\) |
3. | \(H \) | 4. | \(Br\) |
Reductive ozonolysis of the alkene, will give:
1. Only
2. Only
3. Only
4. Mixture of
Which among of the following alkyne will give an aldehyde on hydroboration oxidation reaction?
1.
2.
3.
4. All of these
Ethene and ethyne can be distinguished by:
1. Br2 water
2. KMnO4 solution
3. Cuprous chloride solution
4. All of the above
The product(s) obtained via oxymercuration (HgSO4 + H2SO4 ) of but-1-yne is -
1.
2. CH3CH2 CH2-CHO
3. CH3CH2CHO + HCHO
4. CH3 CH2COOH + HCOOH
Propyne and propene can be distinguished by:
1. Conc. H2SO4
2. Br2 in CCl4
3. Diluted H2SO4
4. AgNO3 in ammonia
Which alkene among the following reacts the fastest with H2 under catalytic conditions?
1. | 2. | ||
3. | 4. |