Everyday Science MCQs

5120 MCQs  (Page 166 of 512)

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Water absorber used in combustion analysis is___________________?
A. 50% koh
B. Lime water
C. Cacl2
D. Mg (cio4)2
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The type of filtering media used for filtration depending upon____________________?
A. Nature of reactants
B. Nature of crucible
C. Nature of product
D. Nature of precipitate
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A method of separation of components from its solution using Distribution law is ___________________?
A. Sublimation
B. Crystallisation
C. Solvent extraction
D. Distillation
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Equal masses of methane and oxygen are mixed in empty container at 250?(C) The fraction of total pressure exerted by oxygen is___________________?
A. One / seventeen
B. Sixteen / seventeen
C. One / three
D. Two / three
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The molecules of CO2 in dry ice form__________________?
A. Ionic crystal
B. Covalent crystal
C. Molecular crystal
D. Any type of crystal
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Only London dispersion forces are present among the_________________?
A. Molecules of water in liquid state
B. Atoms of helium in gaseous state at high temperature
C. Molecules of hydrogen chloride gas
D. Molecules of solid iodine
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Quantum number values for 3p orbitals are____________________?
A. N=3 l=2
B. N=3 l=0
C. N=3 l=1
D. N=3 l=3
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Which specie has unpaired electrons in antibonding molecular orbitals_______________?
A. O2+2
B. N2-2
C. B2
D. O2-2
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For a given process the heat changes at constant pressure (qp) and at constant volume (qv) are related to each other as___________________?
A. Qp = qv
B. Qp < qv
C. Qp > qv
D. Qp = qv / 2
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Solubility product of AgCl is 2.0 x 10-10 mol2 dm-6. Maximum Concentration of Ag+1 ions in the solution is__________________?
A. 2.0 x 10-10 mol dm-3
B. 1.414 x 10-5 mol dm-3
C. 1.0 x 10-10 mol dm-3
D. 1.0 x 10-5 mol dm-3
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Word of the Day
23 Jul
Aisle
a passage between rows of seats in a building such as a church or theatre, an aircraft, or train.
طویل تنگ راستہ، نشتوں کے درمیان راستہ

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