ECAT Pre Engineering Chemistry Chapter 6 MCQ Test With Answer

MCQ's Test For ECAT Chemistry Chapter 6 Chemical Bonding

Try The MCQ's Test For ECAT Chemistry Chapter 6 Chemical Bonding

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ECAT Chemistry Chapter 6 Chemical Bonding

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Question # 1

When of the following is isolelectronic with krypton

Question # 2

According to VSEPR theory, the shape of the water molecule is

Question # 3

Hydrogen chloride molecule contains

Question # 4

The electron affinity of chlorine may be represented by the equation

Question # 5

Atoms obey octet rule by sharing-electrons making covalent bonds according to

Question # 6

Which for the following has no dipole moment

Question # 7

The tendency of an atom to attract shared electron pair towards itself is called

Question # 8

An ionic compound M2S3is formed by the metal M,, the metal is

Question # 9

Water H2O is liquid while hydrogen sulphide H2S is a gas beause

Question # 10

From the difference between expected bond energies for the normal covalent bond and experimentally determined values Pauling calculated the values of

Question # 11

The number of electron pairs shared in carbon tetrachloride molecule is

Question # 12

In which of the following theories the hybridizationis considered

Question # 13

The bond order O2molecule is

Question # 14

The three N - Hσ-bonds are made by

Question # 15

The bond order for He2molecule is

Question # 16

Generally electron affinities for elements in a period from left to right

Question # 17

Number of sigma bonds in P4O10is

Question # 18

The shape of gaseous SnCl2is

Question # 19

The covalent bonds are

Question # 20

The nature of interparticle forces in benzene is

Question # 21

According to MO Theory, the species O2+ possesses

Question # 22

Among the alkaline earth metals the element forming predominantly covalent compounds is

Question # 23

A bond between two atoms may be obtained by sharing of electrons such a bond is called

Question # 24

The shape of methanol, ammonia and water molecule can be explained by assuming

Question # 25

Which one of these is weakest?

Question # 26

The shape of the molecule SF2Cl2is

Question # 27

When an electron is absorbed in an empty or partially filled orbital of an atom, the energy released is called

Question # 28

Shape of CIO3is

Question # 29

The Electro-negatively difference for ionic bond must be greater than

Question # 30

Generally the bond formed by metals with non-metals is

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ECAT Chemistry Chapter 6 Important MCQ's

Sr.# Question Answer
1 Coordinate covalent bond is present in the molecules
A. H2O
B. BF3
C. SiO2
D. SO2
2 Generally the bond formed by metals with non-metals is
A. Ionic
B. Covalent
C. Polar
D. Non- polar
3 Molecular orbital picture of N2 indicates
A. One unpaired electron
B. Two unpaired electron
C. No unpaired electron
D. None of these
4 Which of the following is a polar molecules
A. Carbon dioxide
B. Carbon tetrachloride
C. Methanol
D. Ethane
5 Three sp2hybrid are co-planar at an angle of
A. 104.5°
B. 109.5°
C. 107°
D. 120°
6 Antibonding MO is formed by
A. Addition of atomic orbitals
B. Substraction of atomic orbitals
C. Multiplication of atomic orbitals
D. None of these
7 Which of the following molecules has a net dipole moments
A. CO2
B. CS2
C. SO2
D. CCI4
8 The bond order in No is 2.5 while that in NO+is 3.Which of the following statements is true for these two species?
A. Bond length in NO+is greater than in NO
B. Bond length in unpredictable
C. Bond length in NO+is equal to that in NO
D. Bond length in NO is greater than in NO+
9 If two lone pairs are present then bond angle of tetrahedral compound reduces to ______ degrees
A. 109.5°
B. 107.5°
C. 104.5°
D. None
10 When of the following is isolelectronic with krypton
A. Ca++
B. Al+++
C. Br-1
D. I-1

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