Question

Question 16 : A benzene ring is a ________ system.
None
Conjugation
Hyperconjugation
non conjugation

Question 17 : Another name for methyl benzene is __________.
Phenol
Toluene
Xylene
Naphthalene

Question 18 : 2-methylpropane will have ________than butane.
lower due point
lower saturation point
lower boiling point
lower melting point

Question 19 : Chlorination of ethene at high temperature yields ---------.
Chloroethene
Chloroethyne
12-dichloroethene
13-dichloroethene

Question 20 : All these are electron donating groups with respect to reactivity and orientation EXCEPT _______

−
C
N
−CN


−
N
H
C
O
R
−NHCOR


−
O
R
−OR


−
O
H
−OH

Answer 1

Conjugation
Toluene
lower boiling point
−CN