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Free download in PDF Organic Chemistry Multiple Choice Questions and Answers for competitive exams. These short objective type questions with answers are very important for Board exams as well as competitive exams like UPSC, NDA, SSC etc. These short solved questions or quizzes are provided by Gkseries./p>
(1)
The energy which must be transferred to any atom to dislodge an electron is called?
[A]
Free energy
[B]
Ionization Energy
[C]
Quantum mechanical energy
[D]
Dissociation Energy
Answer: Ionization Energy
(2)
Potassium Ion K+ has the same electronic configuration as that of which noble gases mentioned below?
[A]
Krypton
[B]
Xenon
[C]
Argon
[D]
Radon
(3)
Ten covalent bonds in the Lewis structure of Propane will account for how many valence electrons?
[A]
10
[B]
20
[C]
14
[D]
12
(4)
What is the hybridization of oxygen in water?
[A]
sp
[B]
sp2
[C]
sp3
[D]
sp3d
(5)
The electronegativity difference between the covalently bonded atoms is _________
[A]
Less than 0
[B]
0-0.3
[C]
0.3-1.7
[D]
Over 1.7
(6)
What is the hybridization of Carbon atom in CF4?
[A]
sp2
[B]
sp
[C]
sp3d
[D]
sp3
(7)
Which one has zero dipole moment?
[A]
C6H6
[B]
NH3
[C]
H2S
[D]
NO
(8)
Which one have both sigma and pi bonds?
[A]
H2S
[B]
NO2
[C]
HClO
[D]
NaCN
(9)
PH3, SO3, and HF are examples of polar molecules.
(10)
What is the hybridization of sulphur in H2S?
[A]
sp
[B]
sp2
[C]
sp3
[D]
sp3d