Everyday Science MCQs

5120 MCQs  (Page 215 of 512)

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The bond length of C=C is___________?
A. 1.20a°
B. 1.34a°
C. 1.54a°
D. 1.68a°
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The stationary and mobile phases in paper chromatography are____________?
A. Liquid/liquid
B. Solid/liquid
C. Liquid/solid
D. Liquid/gas
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Beillstein test is used for________?
A. Cl
B. N2
C. Co2
D. Co
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Presence of nitrogen in organic compounds is tested as__________?
A. Nitrogen gas
B. Nh3
C. Cn‾
D. No
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The molar mass of an organic acids is determined by____________?
A. Depression of freezing point
B. Volumetric method
C. Victor meyer’s method
D. Osmosis method
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The IUPAC suffix used for _______ NC group?
A. Cyanide
B. Isocyanides
C. Nitrile
D. Carbylamines
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The IUPAC name of ethylene oxide is__________?
A. Epoxy methane
B. Oxoethene
C. Methoxymethane
D. Oxirane
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The IUPAC name of HCONH2 is___________?
A. methanamide
B. methanoylamine
C. aminoethanol
D. formanide
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The compound (CH3)3COH according to IUPAC is known as ___________?
A. Tert-butanol
B. 2,2-dimethyl-propanol
C. Tert alcohol
D. 1,1- diethylethanol
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The PH of the 0.0032 M H2SO4 is__________?
A. 3.2
B. 4.0
C. 2.198
D. 1.0
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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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