M C Q s D r i v e

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.

The technique used to separate components of mixture in solid phase ?
A Crystallization
B Filtration
C Sublimation
D Solvent extraction
Correct Answer: Sublimation
When light is exposed to transition element then electrons jump from lower orbitals to higher orbitals in______________________?
A orbitals of f-subshell
B orbitals of d-subshell
C orbitals of p-subshell
D both A & B
Correct Answer: both A & B
The tip of funnel should touch the wall of the breaker in order to avoid____________________?
A Inconsistent flow of filtration
B splashing
C premature crystallization
D all of above
Correct Answer: splashing
Compounds attracted by applied strong magnetic field are called__________________?
A diamagnetic
B paramagnetic
C good conductor
D ferromagnetic
Correct Answer: paramagnetic
Size of filter paper is selected according to the amount of__________________?
A solution
B amount of insoluble solute
C amount of soluble solute
D Amount of solvent
Correct Answer: amount of insoluble solute
The location of transition elements is in between__________________?
A lanthanides & actinides
B s and p block elements
C chalcogens and halogens
D d and f block elements
Correct Answer: s and p block elements
Rate of filtration can be increased by applying gentle suction______________?
A Gooch crucible
B Filter paper
C Sintered crucible
D All of the above
Correct Answer: Filter paper
K2 (Cu(CN)4) which one is correct___________________?
A Potassium tetra cyano cupperate
B Co-ordination number is 2
C Ligand is positively charged
D Central atom is present in avionic sphere
Correct Answer: Central atom is present in avionic sphere
In crystallization if the solvent is inflammable then direct heating is________________?
A needed
B avoided
C depends on temperature
D crystallization does not involve heating
Correct Answer: avoided
Which of the following is typical transition metal ?
A Sc
B Y
C Cd
D Co
Correct Answer: Co