Question

Question 16 : All these are electron donating groups with respect to reactivity and orientation EXCEPT _______

−OR


−CN


−OH


−NHCOR


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

Question 18 : Chlorination of ethene at high temperature yields ---------.
Chloroethyne
13-dichloroethene
Chloroethene
12-dichloroethene

Question 19 : 2-methylpropane will have ________than butane.
lower saturation point
lower boiling point
lower melting point
lower due point

Question 20 : In the hydrogenation of benzene,the condition for reaction is ______.
Ni 525-625K 25atm
Ni 425-525K 25atm
Fe 425-525K 25atm
Fe 525-625K 25atm

Answer 1

−CN
Toluene
12-dichloroethene
lower boiling point
Ni 425-525K 25atm