MDCAT Chemistry Chapter 4 MCQ Test With Answer for (Chemical Bonding)

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MCQ's Test For MDCAT Chemistry Chapter 4 Chemical Bonding Online Test

Try The MCQ's Test For MDCAT Chemistry Chapter 4 Chemical Bonding Online Test

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MDCAT Chemistry Chapter 4 Chemical Bonding Online Test

00:00
Question # 1

Saturated hydrocarbons having carbon atoms more than 20 in a molecule are solids due to

Question # 2

Oxygen and sulphur are present in VI-A group of the periodic table The hydride of oxygen i.e., H2O is liquid at room temperature but the hydride of sulphur (H2S) is a gas. This is due to

Question # 3

The B.P of glycerine at 760 torr pressure is

Question # 4

Dipole-dipole interaction are present in the

Question # 5

At freezing point of water, the density decreases due to

Question # 6

The vapour pressure of a liquid depends upon

Question # 7

lce occupies more space than liquid water

Question # 8

The boiling point of H2O is 100°C while that of C2H5-OH is 78.5C°. The reason is that:

Question # 9

Amount of heat absorbed when one mole of a solid melts into liquid form at its melting point is called:

Question # 10

Hydrogen bonding is extensively present in proteins which form the spiral. The hydrogen bond being produced is between

Question # 11

The polarizabilities of elements mostly increase down the group due to the reason that

Question # 12

The long chains of amino acids are coiled around one another into a spiral by

Question # 13

Point out the substance which has maximum vapour pressure at a given temperature?

Question # 14

Halogens form halogen acids. HF is the weakest among all of them This is due to the reason that

Question # 15

The boiling point of higher alkanes are greater than those of lower alkanes due to reason that

Question # 16

H-bonding is maximum in:

Question # 17

Vapour pressure of a substance does not depend upon:

Question # 18

The boiling point of glycerin at 1 atmospheric pressure is:

Question # 19

Liquid hydrocarbon is

Question # 20

Dipole-induced dipole forces are also called

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Prepare Complete Set Wise MDCAT Chemistry Chapter 4 Chemical Bonding Online Test MCQs Online With Answers


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In this topic,Student should be able to :

a) Characterize electrovalent (ionic) bond as in sodium chloride and calcium oxide.

b) Use the ‘dot-and-cross’ diagrams to explain: i) Covalent bonding, as in hydrogen(H2); oxygen(O2); chlorine(Cl2); hydrogen chloride; carbon dioxide; methane and ethane. ii) Co-ordinate (dative covalent) bonding, as in the formation of the ammonium ion in H3N+– -BF3 and H3O+.

c) Describe the shapes and bond angles in molecules by using the qualitative model of Valence Shell Electron-Pair Repulsion (VSEPR) theory up to 4 pairs of electron including bonded electron pair and lone pair around central atom. d) Describe covalent bonding in terms of orbital overlap, giving  and  bonds.

e) Explain the shape of and bond angles in ethane, ethene and benzene molecules in terms of  and  bonds.

f) Describe hydrogen bonding, using ammonia and water as simple examples of molecules containing N-H and O-H groups.

g) Explain the terms bond energy, bond length and bond polarity (electronegativity difference) and use them to compare the nature of covalent bonds i.e. polar and non-polar.

h) Describe intermolecular forces (Van der Waal’s forces), based on permanent and induced dipoles, as in HCl, CHCl3, Halogens and in liquid noble gases.

i) Describe metallic bonding in terms of positive ions surrounded by mobile electrons (sea of electrons).

j) Describe, interpret and/or predict the effect of different types of bonding (ionic bonding; covalent bonding; hydrogen bonding; Van der Waal’s forces and metallic bonding) on the physical properties of substances.

k) Deduce the type of bonding present in a substance from the given information

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MCAT Chemistry Chapter 4 Important MCQ's

Sr.# Question Answer
1 Liquids evaporate at every temperature. When the temperature becomes constant for a liquid, then:
A. rate of evaporation is greater than the rate of condensation
B. the rate of condensation is greater than the rate of evaporation
C. The rate of condensation and evaporation become equal
D. it depends upon the nature of the liquid
2 Which of the following liquid has highest bolling point
A. HCI
B. HBr
C. H2O
D. Br2
3 Oxygen and sulphur are present in VI-A group of the periodic table The hydride of oxygen i.e., H2O is liquid at room temperature but the hydride of sulphur (H2S) is a gas. This is due to
A. greater bond angle of water than Hs
B. greater bond lengths in HS than H2O
C. hydrogen bonding in water
D. acidic character of HS
4 lce occupies more space than liquid water
A. 9%
B. 10%
C. 11%
D. 12%
5 The boiling of water may be 120°C, when the external pressure is
A. greater than 760 torr
B. less than 760 torr
C. equal to 760 torr
D. variable
6 The B.P. of compound is mostly raised by
A. dipole-induced dipole interactions
B. london dispersion forces
C. intramolecular H-bonding
D. intermolecular H-bonding
7 In order to maintain the boiling point of water at 110 C°, the extemal pressure should be
A. 550 torr
B. between 500 and 760 tor
C. between 760 and 1500 torr
D. any pressure can be maintained
8 The B.P of glycerine at 760 torr pressure is
A. 200°C
B. 290C°
C. 250C°
D. 262C°
9 H2O and HF are the hydrides of the second period. Fluorine is more electronegative than oxygen. Anyhow, the boiling point of water is greater than that of HF. This is due to:
A. water is more polar than HF
B. water has a bent structure
C. HF has a zig zag structure after making hydrogen bonding
D. the number of hydrogen bonds produced by water are greater than that of HF
10 H-bonding is maximum in:
A. ethanol
B. benzene
C. diethyl ether
D. water

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