Which of the following compounds cannot be prepared singly by the Wurtz reaction?
C2H6
(CH3)2CHCH3
CH3CH2CH2CH3
All of the above can be prepared
The product Y is
p-chloro nitrobenzene
o-chloro nitrobenzene
m-chloro nitrobenzene
o, p-dichloro nitrobenzene
The IUPAC name of the compound is
pent-4-yn-2-ene
pent-3-en-1-yne
pent-2-en-4-yne
pent-1-yn-3-ene
Consider the reactions,
The mechanisms of reactions (i) and (ii) are respectively
SN 1 and SN2
SN 1 and SN1
SN 2 and SN 2
SN 2 and SN1
CH3CH2Br undergoes Wurtz reaction. We may expect some of the following product
A: CH3CH2CH2CH3
B:
C: CH3-CH3
Select correct product.
Only A
A and B
A, B and C
A and C
CH3CH2NO2
CH3CH2NO2 + CH3NO2
2CH3NO2
CH2 CH2
B.
CH3CH2NO2 + CH3NO2
Under certain conditions, alkanes react with HNO3, a hydrogen atom being replaced by a nitre group (NO2). This process is known as nitration. Nitration of alkane may be carried out in the vapour phase between 150° to 475°C. Where upon a mixture of mono nitro alkanes is obtained.
Example : Ethane give a mixture of nitroethane and nitromethane.
During nitration chain fission of alkanes also takes place, so CH3NO2 is also obtained along with CH3CH2NO2.