Organic Chemistry Multiple Choice Questions and Answers Questions and Answers – Hybrid Orbitals

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Questions
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

Answer: Argon
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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

Answer: 20
4 What is the hybridization of oxygen in water?
A sp
B sp2
C sp3
D sp3d

Answer: sp3
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

Answer: 0-0.3
6 What is the hybridization of Carbon atom in CF4?
A sp2
B sp
C sp3d
D sp3

Answer: sp3
7 Which one has zero dipole moment?
A C6H6
B NH3
C H2S
D NO

Answer: C6H6
8 Which one have both sigma and pi bonds?
A H2S
B NO2
C HClO
D NaCN

Answer: NaCN
9 PH3, SO3, and HF are examples of polar molecules.
A True
B False

Answer: False
10 What is the hybridization of sulphur in H2S?
A sp
B sp2
C sp3
D sp3d

Answer: sp3

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