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Bonding in Some Homonuclear Diatomic Molecules MCQs
1. The number of electrons in bonding orbital and anti-bonding orbital of Lithium molecule are ______ and _______ respectively.
a) 4, 4
b) 2, 2
c) 2, 4
d) 4, 2
Answer: 4, 2
2. What is the electronic configuration of the carbon atom?
a) 1s22s22p2
b) σ1s2σ*1s2σ2s2σ*2s2π2px2π2py2
c) 1s22s22p1
d) σ1s2σ*1s σ2s2π2px2π2py2
Answer: 1s22s22p2
3. O2 is paramagnetic in nature.
a) True
b) False
Answer: True
4. The electronic configurations of molecules change when the number of electrons is ________
a) 10
b) 20
c) 17
d) 14
Answer: 14
5. Which of the following is true regarding nitrogen molecule.
a) Diamagnetic
b) Paramagnetic
c) Bond order is 2
d) Total number of electrons in the molecule is 13
Answer: Diamagnetic
6. H2, N2, O2 and Li2 are ______________
a) heteronuclear diatomic molecules
b) heteronuclear triatomic molecules
c) homonuclear diatomic molecules
d) homonuclear triatomic molecules
Answer: homonuclear diatomic molecules
7. What is the total number of electrons in the Chlorine molecule?
a) 17
b) 34
c) 18
d) 16
Answer: 34
8. What is the electronic configuration of hydrogen molecule?
a) σ1s2
b) σ1s1
c) σ1s
d) σ*1s
Answer: σ1s2
9. What is the condition, for a molecule do not exist?
a) NA = NB
b) NA > NB
c) NA < NB
d) NA >/< NB
Answer: NA = NB
10. Which of the following molecule doesn’t exist?
a) O2
b) H2
c) He2
d) N2
Answer: H2