Q.1
In SN1 type of mechanism the intermediate species is:
  • A free radical
  • A carbonium ion(carbo cation)
  • A carboanion
  • None of these
Q.2
The compound ethylisocyanide is prepared by the reaction between:
  • C2H5Br and KCN
  • C2H5Br and AgCN
  • C2H5Br and HCN
  • C2H5Br and ammonia
Q.3
Which of the following alkyl halide is most readily undergoes hydrolysis by SN1 mechanism?
  • CH3CH2CH2Cl
  • CH3Cl
  • (CH3)2 CHCl
  • (CH3)3 CCl
Q.4
The most reactive alkyl halide is :
  • R – Cl
  • R – Br
  • R- I
  • R- F
Q.5
For a given halogen atom the reactivity is maximum for
  • Methyl halide
  • Primary halide
  • Secondary halide
  • Tertiary halide
Q.6
In SN1 the order of reactivity of halide is:
  • 30 > 20 > 10 > methyl
  • Methyl > 10>20 > 30
  • 30 > 20 > methyl > 10
  • 20 > 10 > methyl > 30
Q.7
The typical reaction of alkyl halide is:
  • Electrophillic substitution
  • Nucleophillic substitution
  • Electrophillic addition
  • Nucleophillic addition
Q.8
Alkyl halide on treatment with aqueous KOH give
  • Acids
  • Alcohols
  • Aldehydes
  • Alkanes
0 h : 0 m : 1 s