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Chemistry 1488 MCQs [All-Courses]

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oost your exam preparation with our Chemistry MCQs designed for PPSC, FPSC, NTS, OTS, PTS, AJKPSC, BPSC, KPPSC, PMS, CSS, and all competitive exams.
Our content covers Basic Chemistry, Atomic Structure, Periodic Table, Chemical Reactions, Acids & Bases, Organic Chemistry, and everyday chemical concepts.

All Topics  1488

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
Correct Answer: 1.414 x 10-5 mol dm-3
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
Correct Answer: qp > qv
Which specie has unpaired electrons in antibonding molecular orbitals_______________?
A O2+2
B N2-2
C B2
D O2-2
Correct Answer: N2-2
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
Correct Answer: n=3 l=1
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
Correct Answer: Molecules of solid iodine
The molecules of CO2 in dry ice form__________________?
A Ionic crystal
B Covalent crystal
C Molecular crystal
D Any type of crystal
Correct Answer: Molecular crystal
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
Correct Answer: one / three
A method of separation of components from its solution using Distribution law is ___________________?
A Sublimation
B Crystallisation
C Solvent extraction
D Distillation
Correct Answer: Solvent extraction
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
Correct Answer: Nature of precipitate
Water absorber used in combustion analysis is___________________?
A 50% KOH
B Lime water
C CaCl2
D Mg (CIO4)2
Correct Answer: Mg (CIO4)2
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