Hydrocarbons

The compound that will react most readily with gaseous bromine has the formula

1. C3H6
2. C2H2
3. C4H10
4. C2H4

In the reaction with HCl, an alkene reacts in accordance with the Markovnikov's rule to give a product 1-chloro-1-methylcyclohexane. The possible alkene is

1. [figure] (A)
2. [figure] (B)
3. (A) and (B)
4. [figure]

2,3-Dimethyl-2-butene can be prepared by heating which of the following compounds with a strong acid?

1. (CH3)3CCH=CH2
2. (CH3)2C=CHCH2CH3
3. (CH3)2CHCH2CH=CH2
4. (CH3)2CH- CH3 |CH-CH=CH2

The oxidation of benzene by V2O5 in the presence of air produces

1. maleic anhydride
2. benzoic acid
3. benzaldehyde
4. benzoic anhydride.

A single compound of the structure, [figure] is obtainable from ozonolysis of which of the following cyclic compounds?

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

The reaction of C6H5CH=CHCH3 with HBr produces

1. C6H5CH2CH2CH2Br
2. [figure]
3. C6H5 Br |CHCH2CH3
4. C6H5CH2 Br |CHCH3

What products are formed when the following compound is treated with Br2 in the presence of FeBr3? [figure]

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

Some meta-directing substituents in aromatic substitution are given. Which one is most deactivating ?

1. -COOH
2. -NO2
3. -C N
4. -SO3H

Which of the following compounds will not undergo Friedel-Crafts reaction easily?

1. Nitrobenzene
2. Toluene
3. Cumene
4. Xylene

Nitrobenzene on reaction with conc. HNO3/H2SO4 at 80-100 C forms which one of the following products?

1. 1, 4-Dinitrobenzene
2. 1, 2, 4 - Trinitrobenzene
3. 1, 2-Dinitrobenzene
4. 1, 3-Dinitrobenzene