Hydrocarbons

Among the following compounds the one that is most reactive towards electrophilic nitration is

1. benzoic acid
2. nitrobenzene
3. toluene
4. benzene

Liquid hydrocarbons can be converted to a mixture of gaseous hydrocarbons by

1. oxidation
2. cracking
3. distillation under reduced pressure
4. hydrolysis

Benzene reacts with CH3Cl in the presence of anhydrous AlCl3 to form

1. chlorobenzene
2. benzyl chloride
3. xylene
4. toluene.

Nitrobenzene can be prepared from benzene by using a mixture of conc. HNO3 and conc. H2SO4. In the mixture, nitric acid acts as a/an

1. acid
2. base
3. catalyst
4. reducing agent

H3C- CH3 |CH-CH=CH2 + HBr A A (predominantly) is

1. CH3- Br |CH- CH3 |CH-CH3
2. CH3- CH3 |CH- Br |CH-CH3
3. CH3- CH3 |CH-CH2-CH2Br
4. CH3- Br | CH3 |C-CH2CH3

The order of decreasing reactivity towards an electrophilic reagent, for the following would be (i) benzene (ii) toluene (iii) chlorobenzene (iv) phenol

1. (ii) > (iv) > (i) > (iii)
2. (iv) > (iii) > (ii) > (i)
3. (iv) > (ii) > (i) > (iii)
4. (i) > (ii) > (iii) > (iv)

Predict the product C obtained in the following reaction of 1-butyne. CH3CH2-C CH + HCl B HI C

1. CH3-CH2-CH2- Cl | I |C-H
2. CH3-CH2- I |CH-CH2Cl
3. CH3CH2- Cl | I |C-CH3
4. CH3- Cl |CH-CH2CH2I

Which of the compound with molecular formula C5H10 yields acetone on ozonolysis?

1. 3-Methyl-1-butene
2. Cyclopentane
3. 2-Methyl-1-butene
4. 2-Methyl-2-butene

The correct order regarding the electronegativity of hybrid orbitals of carbon is

1. sp < sp2 < sp3
2. sp > sp2 < sp3
3. sp > sp2 > sp3
4. sp < sp2 > sp3

Which one of the following alkenes will react faster with H2 under catalytic hydrogenation conditions ?

1. [figure]
2. [figure]
3. [figure]
4. [figure]