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• Yes

• No

A

• 1, 3 nitrobenzene

• 1,3 nitrobenzoic acid

• 1,3 dinitrobenzoic acid

• 3,5 dinitrobenzoic acid

B

• 2-phenyl butane

• phenyl butane

• butane benzene

• 2-phenyl pentane

C

• 4-methyl-1ethylbenzene

• 3-ethyl-6-methylbenzene

• 1-ethyl-4-methylbenzene

• diethyl benzene