Which Chloride is least reactive with the hydrolysis point of view

CH₃Cl
CH₃CH₂Cl
(CH₃)₃CCl
CH₂ = CH – Cl

Solution

$CH_{2}=\underset{(Vinyl\: Chloride)}{CH-Cl}$

The halogen atom in vinyl chloride is not reactive as in other alkyl halides. The non-reactivity of chlorine atom is due to resonance stabilisation. The l.P. on Cl-atom can participate in delocalisation (Resonance) to give two canonical structure.

When phenyl magnesium bromide reacts with tert-butanol,the product would be

benzene
phenol
ter-butylbenzene
ter-butyl phenyl ether

Solution

Grignard reagents react with compounds containing active hydrogen to form hydrocarbons corresponding to alkyl(or aryl) part of the Grignard reagent.

C₆H₅MgBr + Me₃COH → C₆H₆ + Me₃COMgBr

Which one of the following alkyl halideshas the lowest boiling point?

n-Butyl chloride
iso-Butyl chloride
sec-Butyl chloride
tert-Butyl chloride

Solution

The boiling points of alkyl chlorides increases with increase in molecular weight. In case of isomeric alkylchloride,the order of boiling point is

primary > secondary > tertiary

To prepare 3-ethylpentan-3-ol the reagents needed are –

CH₃CH₂MgBr + CH₃COCH₂CH₃
CH₃MgBr + CH₃CH₂CH₂COCH₂CH₃
CH₃CH₂MgBr + CH₃CH₂COCH₂CH₃
CH₃CH₂CH₂MgBr + CH₃COCH₂CH₃

Solution

What is the product of the following reaction?

N, N-dimethyl aniline
phenyl lithium(C₆H₅Li)
para chloro-N, N-dimethyl aniline
meta chloro-N, N-dimethyl aniline

Solution

Silver benzoate reacts with bromine to form

C₆H₅Br

Solution

An alkyl halide with molecular formula C₆H₁₃Br on dehydrohalogenationgave two isomeric alkenes X and Y with molecular formula C₆H₁₂. On reductive ozonolys is, X and Y gave four compounds CH₃COCH₃, CH₃CHO,CH₃CH₂CHO and (CH₃)₂CHCHO. The alkyl halide is

2-bromohexane
2, 2-dimethyl-1-bromobutane
4-bromo-2-methylpentane
3-bromo-2-methylpentane

Solution

On sulphonation of C₆H₅Cl

m-chlorobenzenesulphonic acid is formed
benzenesulphonic acid is formed
o-chlorobenzenesulphonic acid is formed
mixture of o- and p-Chlorobenzenesulphonic acid is formed

Solution

–Cl is o, p–directing

Bromination of toluene gives

only m-substituted product
only p-substituted product
mixture of o-and p-substituted products
mixture of o-and m-substituted products

Solution

–CH₃ group is o, p–directing

In alkaline hydrolysis of a tertiary alkyl halide by aqueous alkali, if concentration of alkali is doubled, then the reaction rate of constant temperature

will be doubled
will be halved
will become four times greater
will remain constant

Solution

UnAttempted

10

Attempted

0

Correct

0

Wrong

0

Complete