Question 11 : In electrophilic addition to alkenes, the electrophilic attack is on ---------.
C-H bond
None of the above
C=C bond
H-H bond
Question 12 : A benzenoid hydrocarbon in which two benzene rings are fused together at the ortho position is called ----------. <
Naphthalene
Biphenyl
Anthracene
Phenanthrene
Question 13 : A substance which ionises to produce hydroxide ions is called __________.
Salt
Base
None of the above
Acid
Question 14 : Hydrogenation of benzene at higher temperature and under pressure yields -------
Benzaldehyde
Cyclohexyne
Cyclohexene
Cyclohexane
Question 15 : Among isomeric molecules, the linear isomer is ________.
Polar isomer
non-polar isomer
Unbranched isomer
Branched isomer
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