Everyday Science MCQs

5120 MCQs  (Page 258 of 512)

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Which one of the following alcohol has greater boiling point___________________?
A. Ethanol
B. Ethylene glaycol
C. Glycerol
D. Methanol
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Water gas heated at 450?C and 200 atm pressure in the presence of ZnO+Cr2O3 will produce________________?
A. Methanol
B. Methanol
C. Carbonic acid
D. Methane
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The formula of starch is__________________?
A. C12h22o11
B. C6h10o5
C. (c6h10o5)n
D. C6h12o6
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The rectified spirit contains________________?
A. 12% alcohol
B. 90% alcohol
C. 95% alcohol
D. 100% alcohol
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The oxidation of isopropyl alcohol will yield___________________?
A. Propane
B. Propanol
C. Propanone
D. Propanoic acid
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The distinction test for primary secondary and tertiary alcohol required to react each of them is_________________?
A. Cone. hci and anhydrous socl2
B. Cone. hci and anhydrous cacl2
C. Cone. hci and anhydrous pcl2
D. Cone. hci and anhydrous zncl2
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Which compound is also known by the name of carbolic acid ?
A. C2h2oh
B. H2co3
C. C6h5oh
D. H3po3
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Heating phenol with Zn will yield_________________?
A. Benzene
B. Benzoic acid
C. Phenoxide
D. Cyclohexane
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Treating phenol with formaldehyde in the presence of dilute base forms Bakelite. The process involved is_________________?
A. Oxidation
B. Elimination
C. Condensation polymerization
D. Additional polymertization
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Ethanol can be converted into ethanoic acid by_________________?
A. Hydrogenation
B. Hydration
C. Oxidation
D. Fermentation
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Word of the Day
24 Jul
Untenable
(especially of a position or view) not able to be maintained or defended against attack or objection.
ناقابل مدافعت، غیر مستحکم، جو دلیل سے ثابت نہ ہو سکے

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