The most reactive compound among the following towards electrophilic substitution reaction is:

1.		2.
3.		4.

In the following reaction,

the number of ($\sigma$) bonds present in the product (A) is-

The alkane that gives only one monochloro product on chlorination with $C{l}_2$ in presence of diffused sunlight is -

1. 2,2,-Dimethylbutane

2. Neopentane

3. n-Pentane

4. Isopentane

The most suitable reagent for the following conversion, is:

1.  ${\mathrm{Hg}}^{2+}/{\mathrm{H}}^{+} , {\mathrm{H}}_2\mathrm{O}$

2.  Na/liquid NH₃

3.  H₂, Pd/C, quinoline

4.  Zn/HCl

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

1. 2-methyl-2-butene

2. 2-methyl-1-butene

3.  Cyclopentane

4. 3-methyl-1-butene

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

1. Toluene

2. Chlorobenzene

3. Benzylchloride

4. Xylene

The state of hybridisation of C₂, C₃, C₅ and C₆of the hydrocarbon, 
 
is in the following sequence : 

1. $sp,s{p}^3,s{p}^2 and s{p}^3$

2. $s{p}^3,s{p}^2,s{p}^2 and sp$

3. $sp,s{p}^2,s{p}^2 and s{p}^3$

4. $sp,s{p}^2,s{p}^3 and sp2$