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

All covalent bonds formed between the two atoms are non-polar when

Question # 2

Covalent compounds are soluble in

Question # 3

The bond order O2molecule is

Question # 4

SnCI2have ______ shape

Question # 5

Shape of CIO3is

Question # 6

Elements have the tendency to attain 8 electrons in their valence shell. This is known as

Question # 7

The geometry of 4 sp3hybrid orbitals on an atom is

Question # 8

Which one of these is weakest?

Question # 9

The structure of ICI2is

Question # 10

Outer shells of two elements X and Y have two and six electrons respectively. If they combine, the expected formula of compound will be

Question # 11

Hydrogen chloride molecule contains

Question # 12

Ca, Mg, Be, Ba, belong to the same group, the order of their ionization energy values is

Question # 13

The equation for the first ionization energy of hydrogen is

Question # 14

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

Question # 15

Which of the following has unchanged valency?

Question # 16

The ionic bonds are

Question # 17

Tripple bond is present in

Question # 18

The electron affinity of chlorine may be represented by the equation

Question # 19

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

Question # 20

Generally ionization energy of atoms decreases by

Question # 21

The three N - Hσ-bonds are made by

Question # 22

Fluorine molecule is formed by

Question # 23

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

Question # 24

Which of the following has highest bond order

Question # 25

The covalent bonds are

Question # 26

Molecular orbital picture of N2 indicates

Question # 27

When of the following is isolelectronic with krypton

Question # 28

Which of the following species has unpaired electrons in antibonding molecular orbitals

Question # 29

The number of antibonding electron pairs in O2-molecular ion on the basis of MOT is

Question # 30

The bond angles in methane CH4are equal to

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ECAT Chemistry Chapter 6 Important MCQ's

Sr.# Question Answer
1 Which of the following is a polar molecules
A. Carbon dioxide
B. Carbon tetrachloride
C. Methanol
D. Ethane
2 The shape of CIO-3according to valence shell electron pair repulsion theory will be
A. Planar triangle
B. Pyramidal
C. Tetrahedral
D. Square planar
3 The bond angle depends upon the
A. Types of bonds
B. Number of bonds
C. Non-bonding electron pairs
D. All of the above
4 The equation for the first ionization energy of hydrogen is
5 According to MO Theory, the species O2+ possesses
A. bond order of 2.5
B. three unpaired
C. diamagnetic character
D. stability lower then O2
6 N-atom forms three covalent bonds, its electronic configuration is
7 The force which holds the atoms together to form a compound is called
A. A chemical bond
B. Van der waal's force
C. Dispersion force
D. London force
8 Noble gases have the electronic configuration with their valance shell ns2np6except one
A. He
B. Ne
C. Kr
D. Xe
9 Inter molecular forces in solid hydrogen are
A. Covalent forces
B. Van der Waal forces or London dispersion forces
C. Hydrogen bonds
D. All of these
10 B-atom in BF3has
A. sp3hybridization
B. sp2hybridization
C. sp hybridization
D. no hybridization

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