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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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