Solved Chemistry MCQ Test Series on Chemical Bonding and Molecular Structure for NEET, IIT, JEE main

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Chemical Bonding and Molecular Structure

Syllabus :

Chemical combination; Kossel-Lewis Approach to Chemical Bonding; Lattice Energy; Covalent Bond; Octet Rule; Ionic and electrovalent Bond; Electrovalency; Covalency; Writing formula of an ionic compound; Coordinate Bond; Metallic Bond; Bond parameters - bond length, bond angle, bond enthalpy, bond order, resonance structures, polarity of bonds; The Valence Shell Electron Pair Repulsion (VSEPR) Theory; Valence Bond Theory; Geometry of molecules; Hybridisation; Molecular Orbital Theory; Bonding in some Homonuclear Diatomic Molecules; Hydrogen Bonding

Chemistry Solution: Chemical Bonding and Molecular Structure

MCQ Test Series – Set 4 (Q No.31-40)

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Question 31: Among the following compounds the one that is polar and has the central atom with sp² hybridisation is:

a. H₂CO₃

b. SiF₄

c. BF₃

d. HClO₂

Question 32: The bond order –

a. Can have negative value

b. Is any number other than zero

c. Is any integer

d. Can have any value including zero

Question 33: Which of the following molecular species has unpaired electron(s)?

a. N₂

b. F₂

c. O₂^-

d. O₂^2-

Question 34: Which compound has planar structure?

a. XeF₄

b. XeOF_2­

c. XeO₂F₂

d. XeO₄

Question 35: Molecular orbital theory is preferred over valence bond theory as it can explain:

a. Bond strength

b. Geometry of molecule

c. The magnetic nature of the molecule

d. None of the above

Question 36: Acetylene consists of –

a. Both sigma and pi bonds

b. Sigma bond only

c. Pi bond only

d. None of these

Question 37: Which among the following has the highest volatility?

a. H₂O

b. H₂S

c. H₂Se

d. H₂Te

Question 38: Which one of the following is not the resonating structure of CO₂:

a. O ≡ C = O

b. O = C = O

c. ^–O – C ≡ O⁺

d. ⁺O ≡ C – O^-

Question 39: Born Haber cycle is based on:

a. Law of conservation of mass

b. Law of conservation of energy

c. Fajan’s law

d. Charle’s law

Question 40: Which of the following models best describes the bonding within a layer of the graphite structure?

a. Metallic bonding

b. Ionic bonding

c. Non-metallic covalent bonding

d. Van der Waals forces

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MCQ Test Series: Chemical Bonding and Molecular Structure

Solutions of Set 4 (Q. No.31 – 40)

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Answer 32: (d). Answer 33: (c). Answer 34: (a). Answer 35: (c). Answer 36: (a). Answer 37: (b). Answer 38: (a). Answer 39: (b). Answer 40: (c).

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