The reaction in propene with HBr is presence of peroxide proceeds through the intermediate

• H₃C - $\underset{.}{\mathrm{C}}$H - CH₃

• H₃C - $\underset{.}{\mathrm{C}}$H -CH₂Br

• H₃C - $\stackrel{\mathrm{Br}}{\stackrel{|}{\mathrm{CH}}} - \stackrel{.}{\mathrm{C}}$H₂

• H₃C - CH₂ - $\stackrel{.}{\mathrm{C}}$H₂

The total number of monohalogenated products formed by halogenation of 2, 4, 4-trimethylhexane are,

• 5

• 7

• 6

• 8

If 27 g of water is formed during complete combustion of pure propene (C₃H₆), the mass of propene burnt is

• 42 gm

• 21 gm

• 14 gm

• 56 gm

When methane is heated with dioxygen in the presence of Mo₂O₃ catalyst, the organic product obtained is

• methanal

• ethanoic acid

• methanol

• ethanol

The products obtained by the ozonolysis of 2-ethylbut-1-ene are

• propanone and ethanal

• methanal and 3-pentanone

• ethanal and 3-pentanone

• butanal and ethanal

When but-2-yne is treated with Na in liquid ammonia

• cis-2-butene is obtained

• trans-2-butene is formed

• n-butane is the major product

• it rearranges to but-1-yne

When n-hexane is heated with anhydrous AlCl₃ and HCl gas, the major product obtained is

• 1-chlorohexane

• 2-chlorohexane

• 3-chlorohexane

• mixture of 2-methylpentane and 3-methylpentane

328.

The decreasing order of acidic character among ethane (I), ethene (II), ethyne (III) and propyne (IV) is

• (I) > (II) > (III) > (IV)

• (II) > (III) > (I) > (IV)

• (III) > (IV) > (II) > (I)

• (IV) > (III) > (II) > (I)

The alkene that will give the same product with HBr in the absence as well as in the presence of peroxide is

• 2-butene

• 1-butene

• propene

• 2-methylpropene

Chlorination of benzene in the presence of halogen carrier is an example of

• aromatic nucleophilic substitution

• aromatic electrophilic substitution

• aromatic nucleophilic addition

• aromatic electrophilic addition