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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

Molecular orbital Theory is also called_________?
A Bonding theory
B Band theory
C Antibondingtheory
D π and σ bonding theory
Correct Answer: Antibondingtheory
FeSO4 forms brown ring with________________?
A N2O3
B NO2
C NO
D N2O
Correct Answer: NO
A substance which increases the reactivity of enzyme is called_________________?
A Promoters
B Inhibitors
C Stimulators
D Non-activators
Correct Answer: Promoters
BeCl2 has the hybrid orbitaks of type_______?
A Sp2
B Sp3
C Sp
D dsp2
Correct Answer: Sp
The gas which cannot be dried by conc. H2SO4 ?
A SO2
B H2S
C CO2
D C2H4
Correct Answer: H2S
An enzyme has its specificity due to________________?
A Substrate
B Structure
C Temperature
D Pressure
Correct Answer: Structure
I3( Tri-iodine) has shape_________?
A Trigonal bipyramidal
B Linear
C Square bipyramidal
D Both A and C
Correct Answer: Linear
Which of the elements show passivity when treated with conc. HNO3?
A Fe
B A
C Cr
D All of the above
Correct Answer: A
Biocatalytical proteins are_________________?
A Enzymes
B Substrate
C Lipids
D any of above
Correct Answer: Enzymes
Water molecule is________?
A V-shaped
B Angular
C Pyramidal
D Triangular planer
Correct Answer: V-shaped
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