Given compounds are as follows:

(I)		(II)
(III)

The enthalpy of hydrogenation of these compounds will be in the order as-

1.	I > II > III	2.	III > II > I
3.	II > III > I	4.	II > I > III

The isobutyl group among the following is:

1.
2.	CH3–CH2–CH2–CH2–
3.
4.

The incorrect IUPAC name among the following is:

1.
2.
3.
4.

The linear molecules among the following is:

1.  ${\mathrm{CH}}_3-\mathrm{C}\equiv \mathrm{C}-{\mathrm{CH}}_3$
2.  ${\mathrm{CH}}_2=\mathrm{CH}-{\mathrm{CH}}_2-\mathrm{C}\equiv \mathrm{CH}$
3.  ${\mathrm{CH}}_3-{\mathrm{CH}}_2-{\mathrm{CH}}_2-{\mathrm{CH}}_3$
4.  ${\mathrm{CH}}_3-\mathrm{CH}=\mathrm{CH}-{\mathrm{CH}}_3$

The correct IUPAC name of the given compound is:

1. 3-Ethyl-4-ethenylheptane

2. 3-Ethyl-4-propylhex-5-ene

3. 3-(1-Ethyl propyl) hex-1-ene

4. 4-Ethyl-3-propylhex-1-ene

The reaction of toluene with Cl₂ in presence of FeCl₃ gives ‘X' and the reaction in presence of light gives 'Y'. 'X' and 'Y' are respectively:

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