NEET

a
b
c
d

Solution

Which of the following compounds does not follow Markownikoff’s law ?

CH₃CH = CH₂
CH₂CHCl
CH₃CH = CHCH₃
None

Solution

As per Markovnikoff’s law, the positive part (e.g. H of HX) or the less negative part of the reagent adds to that carbon atom of alkene which has more number of hydrogen atoms (the rich gets richer). So(c) is the correct optionas the two carbons containing the double bond have one H atom each i.e. symmetric.

Nitration of toluene using fuming sulphuric and nitric acid gives :

p-nitrotoluene
o-nitrotoluene
m-nitrotoluene
tri-nitrotoluene

Solution

Using anhydrous AlCl₃ as catalyst, which one of the following reactions produces ethyl benzene (PhEt)?

H₃C - CH₂OH + C₆H₆
CH₃ - CH = CH₂ + C₆H₆
H₂C = CH₂ + C₆H₆
H₃C - CH₃ + C₆H₆

Solution

Which of the following organic compound will give a mixture of 1-chlorobutane and 2-chlorobutane on chlorination?

CH₂ = CH – CH = CH₂
CH₂ = CH – CH₂ – CH₃

Solution

Triple bond of ethyne is made of or Cylindrical shape of analkyne is due to

Three ? – bonds
Three ?– bonds
Two ? and one ?– bond
Two ? and one ? – bond

Solution

In CH = CH triple bond consists of one ? and two ? bonds

a
b
c
d

Solution

Propyne on polymerisation gives

Mesitylene
Benzene
Ethyl benzene
Propyl benzene

Solution

The ring structure of benzene was proposed by

Faraday
Davy
Kekule
Wohler

Solution

The product(s)obtained via oxymercuration (HgSO₄ + H₂SO₄) of 1-butyne would be

CH₃– CH₂– CH₂– CHO
CH₃– CH₂– CHO + HCHO
CH₃CH₂COOH + HCOOH

Solution

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