Chlorination of methane takes place by:

1. Elimination

2. ${\mathrm{S}}_{\mathrm{N}}1$

3. Free radical

4. ${\mathrm{S}}_{\mathrm{N}}2$

The products formed after ozonolysis of Pent-2-ene are -

1. Ethanal, Methanal

2. Ethanal, Propanal

3. Ethanal, Butanal

4. Ethanal, Ethanal

Decreasing order of acidic behavior of benzene, n-hexane, and ethyne is -

1. Hexane > Ethyne > Benzene

2. Benzene > Hexane > Ethyne

3. Ethyne > Benzene > Hexane

4. Benzene > Ethyne > Hexene

Out of the above alkenes, the ones that can give 2-methyl butane on hydrogenation are-

The correct order of decreasing reactivity of the following compounds:

Chlorobenzene, 2,4-Dinitrochlorobenzene, and p-Nitrochlorobenzene

with an electrophile (E⁺)  is :

 An alkene ‘A’ on ozonolysis gives a mixture of ethanal and pentan-3-one.
The IUPAC name of ‘A’ is :

1. 3-Ethylpent-2-ene

2. 3-Ethylpent-2- yne

3. 2-Ethylpent-3-ene

4. 3-Ethylpent-4-yne

An alkene ‘A’ contains 3 C – Cσ bonds, 8 C – H σ bonds, and 1 C – C π bond,

 ‘A’ on ozonolysis gives two moles of an aldehyde of molar mass 44 u. The IUPAC name of ‘A’ is -

1. Prop-2-yne

2. But-2-ene

3. But-2-yne

4. Prop-2-ene

Propanal and pentane-3-one are the products of ozonolysis of an alkene. The structural formula of the alkene is  :

1.		2.	,
3.		4.

The balanced chemical equation for the combustion reaction of Butane is :