Everyday Science MCQs

5120 MCQs  (Page 257 of 512)

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The given dissociation constant (Ka) value 1.3×10-10 is of_________________?
A. Alcohol
B. Acetic acid
C. Water
D. Phenol
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When phenol is heated with concentrated nitric acid the product is________________?
A. Picric acid
B. O-nitrophenol
C. 1 3 5 -trinitro benzene
D. P-nitrophenol
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Which compound shows hydrogen bonding ?
A. C2h6
B. C2h5cl
C. Ch3och3
D. C2h5oh
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Methyl alcohol is not used__________________?
A. As a solvent
B. As an antifreezing agent
C. As a substitute for petrol
D. For denaturing of ethyl alcohol
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An alcohol which can be prepared by fermentation is_________________?
A. Ch3oh
B. C3h7oh
C. Ch3 – ch2 – oh
D. C6h5oh
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When alcohol reacts with phosphorous halides it geive____________________?
A. Alkyl halides
B. Alkyl amine
C. Alkanes
D. Alkynes
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Which one of the following compound does not have – OH group___________________?
A. Ethylene glycol
B. Glycerol
C. Picric acid
D. Ethyl acetate
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Ethers show functional group isomerism with __________________?
A. Aldehydes
B. Ketones
C. Alcohols
D. Carboxylic acid
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The hydrogenation of phenol in the presence of Ni and heat gives_________________?
A. Cyclohexane
B. N – hexane
C. 1 – hexanol
D. Cyclohexanol
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Ethanol and methanol can be distinguished by a__________________?
A. Iodoform test
B. Lucas test
C. Benedicts test
D. Tollens test
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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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