Fsc Part 2 Chemistry Online Test-Chapter 9 Aromatic Hydrocarbons

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Sr.#	Question	Answer
1	Cyclic structure of benzene was proposed by	A. Dewar B. Faraday C. Down D. Kekule
2	Effect of substituent on benzene ring is due to	A. Resonance B. Inductive effect C. Both a and b D. Neither a nor b
3	Phenol when distilled with zinc dust gives.	A. Toluene B. Benzaldehyde C. Benzoic acid D. Benzene
4	Which compound form benzoic acid on oxidation with strong oxidizing agent.	A. Toluene B. Ethyl benzene C. n propyl benzene D. All
5	Hydrolysis of benzene sulphonic acid with superheated steam or by boiling with dil HCl gives.	A. Toluene B. Benzene C. Xylene D. Chlorobenzene
6	The conversation of n-hexane into benzene by heating in in the presence of Pt is called	A. Isomerization B. Aromatization C. Dealkylation D. Rearrangement
7	The resonating contributing structures of Benzene are	A. 2 B. 3 C. 5 D. 7
8	Aromatic compounds burns with sooty flame because.	A. They have high percentage of hydrogen B. The have a right structure C. The have high percentage of carbon D. The resist reaction with air
9	The conversion of benzene to chlorobenzene is a	A. Addition reaction B. Elimination reaction C. Substitution reaction D. Dehydration process
10	During nitration of benzene, the active nitrating agent is	A. NO₃ B. NO₂⁺ C. NO₂^- D. HNO₃