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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

A specie with maximum number of unpaired electrons ?
A F
B H2O
C HF
D NH-2
Correct Answer: NH-2
Measurement of the degree of polarity is___________________?
A Electron affinity
B Ionic character
C Ionization energy
D Dipole moment
Correct Answer: Dipole moment
In O2 each oxygen atom is hybridized_________________?
A sp3
B sp2
C sp
D All
Correct Answer: sp2
Which one is not the absolute term of the element _________________ ?
A Ionization energy
B Electron affinity
C Electro negativity
D Atomic size
Correct Answer: Electro negativity
The octet rule does not always hold for which of the following elements _________________?
A C
B O
C F
D P
Correct Answer: P
Which type of bond is formed by overlap of p orbitals _______________?
A Pi
B Sigma
C Both
D Neither
Correct Answer: Both
The ionization energy__________________?
A Generally increases from left to right in a period
B Does not change in a period
C Increase from top to bottom in a group
D Does not change in a group
Correct Answer: Generally increases from left to right in a period
Shaking two immiscible liquids increases_________________?
A Length of contact
B Volume of contact
C Area of contact
D all of above
Correct Answer: Area of contact
Which is not a sublime material_______________?
A Iodine
B Benzoic acid
C Ammonium chloride
D Potash alum
Correct Answer: Potash alum
Selection of filter paper depends on size of particles to be________________?
A filtered
B dried
C decolorized
D decanted
Correct Answer: filtered
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