An unsaturated hydrocarbon 'A' reacts with two molecules of H₂ and upon reductive ozonolysis A gives butane-1,4-dial, ethanal, and propanone.

The IUPAC name of A is:

1. 2-Methylocta-2,6-diene

2. 2-Methylocta-1,5-diene

3. 3-Methylocta-2,6-diene

4. 2-Methylocta-1,6-diene

$\mathrm{Benzene}+{\mathrm{CH}}_3\mathrm{Cl}\stackrel{{\mathrm{AlCl}}_3}{\to } {\mathrm{C}}_6{\mathrm{H}}_5{\mathrm{CH}}_3$

The mechanism & intermediate involved in the above reaction are:

1. Aromatic electrophilic substitution & carbocation

2. Aromatic Nucleophilic substitution & carbanion

3. Aromatic free radical substitution & Free radical

4. Carbene based substitution reaction & Carbene

The type of radicals that can be formed as intermediates during monochlorination of 2-methylpropane is-

1. Primary and tertiary radicals

2. Two types of primary radicals

3. Primary and secondary radicals

4. Two types of tertiary radical

The major product(s) in the below reaction is-

\(H_{3} C - CH = CH_{2} \xrightarrow[{\left(\right. Ph - CO - O \left.\right)_{2}}]{HBr} S\)

1. \(\underset{1 - Bromopropane}{H_{3} C - CH_{2} - CH_{2} Br}\)

2. \(\underset{2 - Bromopropane}{CH_{3} - \underset{Br}{\underset{\left|\right.}{CH}} - CH_{3}}\)

3. \(\underset{Propene}{CH_{3} - CH = CH_{2}}\)

4. None of the above

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

Among the two isomers given above, the reason behind higher boiling point of one isomer as compared to the order is :

1. Cis - less polar than trans

2. Trans - more polar than cis

3. Cis - more intermolecular forces

4. Trans - more dipole-dipole interactions

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

$\mathrm{Ethyne} \stackrel{?}{\to }$ $\mathrm{Benzene}$ 

The reagent used in the above conversion is:

1. Cr₂O₃

2. Alc. KOH

3. Red hot Fe

4. NaNH₂/liq.NH₃

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