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.

Molecular orbitals are filled according to _________________?
A Auf bau principle
B Hunds rule
C Paulis Exclusion principle
D All these
Correct Answer: All these
Which one has maximum number of unpaired electrons ?
A 6X
B 7Y
C 9Z
D 13W
Correct Answer: 7Y
Which of the solid does not contain covalent bond________________?
A Copper
B Ice
C Diamond
D Graphite
Correct Answer: Copper
Which of the following will have highest value of electron affinity_________________?
A F
B Cl
C Br
D I
Correct Answer: Cl
The relative attraction of the nucleus for the electrons in a chemical bond is called _________________?
A Ionization energy
B Electron affinity
C Electro negativity
D None of the above
Correct Answer: Electro negativity
Unit of dipole moment is_________________?
A Debye
B Poise
C Pascal
D Newton
Correct Answer: Debye
Bond order for N2 molecule is __________________?
A 2
B 1
C 3
D 4
Correct Answer: 3
Molecular orbital which have higher energy than atomic orbitals is called___________________?
A Bonding molecular orbital
B Antibonding molecular orbital
C Hybrid orbital
D Super atomic orbital
Correct Answer: Antibonding molecular orbital
Pi bonds are produced by overlapping of__________________?
A Un-hybrid orbitals
B Hybrid orbitals
C Hybrid and un hybrid orbitals
D atomic orbital and hybrid orbital
Correct Answer: Un-hybrid orbitals
Geometry of simple molecule having sp3 hybrid orbital is ___________________?
A Triangular
B Tetrahedral
C Square planner
D Linear
Correct Answer: Tetrahedral