Aromatic Hydrocarbons Chapter-wise MCQs Chemistry book fsc


FSC Physics MCQs Part 2 Physics Part 1 HSSC Pre Medical Pre Engineering text Book Questions first year and second-year Physics mcqs

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[question]
In benzene sulphonic acid the sulphonic group is attached with benzene ring through
A. Hydrogen B. Oxygen
C. Sulphur D. ?OH
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[explanation]C[/explanation]
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[quiz]
[question]
When benzene is substituted by halogens only which one of the following halogens only which one of the following halogens is given the number one position in the ring while writing the name of compound?
A. Bromine B. Chlorine
C. Fluorine D. Iodine
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[explanation]D[/explanation]
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[quiz]
[question]
Michael Faraday discovered benzene in the gas which was produced by destructive distillation of vegetable oil that is done in
A. The presence of Oxygen B. The presence of Hydrogen
C. The absence of Oxygen D. The presence of excessive Oxygen
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[explanation]C[/explanation]
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[quiz]
[question]
The resonance energy of benzene is
A. 150.5 kJ/mol B. 250.5 kJ/mol
C. 150.5 Cal/mol D. 250.5 Cal/mol
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[explanation]A[/explanation]
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[quiz]
[question]
Which one of the following methods will not give benzene?
A. Heating sod. Salt of Benzoic acid with soda lime B. Distilling phenol with Zn dust
C. Chlorobenzene with NaOH at 360?C & 150atm. D. Hydrolysis of benzene sulphonic acid with super heated steam.
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[explanation]C[/explanation]
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