Everyday Science MCQs

5120 MCQs  (Page 275 of 512)

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Benzene does not undergo___________________?
A. Substitution reaction
B. Addition reaction
C. Polymerization reactions
D. Oxidation reactions
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Nitronium ion is___________________?
A. No3
B. No
C. No2-
D. No2+
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The hydrolysis of Benzenetrizonide will yield three moles of____________________?
A. Glyoxime
B. Benzaldehyde
C. Glycol
D. Glyoxal
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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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Aniline is a derivative of benzene which contains__________________?
A. Imino group
B. Amino group
C. Amide group
D. Nitro group
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Nitration of chlorobenzene gives___________________?
A. O – chloronitrobenzene
B. P – chloronitrobenzene
C. M – chloronitrobenzene
D. A & b
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What catalyst is employed when benzene is prepared from acetylene at 70°C?
A. Cr2o3 + a2o3 + sio2
B. Raney nickel
C. Organo-nickel
D. Ni 250 – 300°c
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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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Reacting bromine with benzene in the presence of sunlight will result in_______________?
A. The rupturing of benzene ring
B. Substitution reaction
C. Addition reaction
D. No-reaction
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During sulphonation of benzene H2SO4 generates the electrophile _________________?
A. Hso4-
B. So2
C. So3
D. H+
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Word of the Day
25 Jul
January
a preference or special liking for something; a bias in favour of something.
2021:00:00

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