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

The formation of compounds like PF5, BCI3, SF6indicates that

Question # 2

Which of the following molecules has unpaired electrons in anti-bonding molecular orbitals?

Question # 3

The ionic bonds are

Question # 4

Electronegativity values of the elements F, CI and Br vary

Question # 5

The electron affinity of chlorine may be represented by the equation

Question # 6

Which of the following is a polar molecules

Question # 7

Molecular orbital picture of N2 indicates

Question # 8

The nature of interparticle forces in benzene is

Question # 9

Nitrogen in NH3is sp3hybridized but the bond angle in NH3is 107° and not 109.5° due to

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

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

Question # 12

Fluorine molecule is formed by

Question # 13

In H2O molecule the bond angle is

Question # 14

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?

Question # 15

B-atom in BF3has

Question # 16

Antibonding MO is formed by

Question # 17

The bond order of individual C - C bond is benzene is

Question # 18

The most suitable method of the separation of a mixture of ortho and para-nitrophenol mixed in the ratio of 1: 1 is

Question # 19

Which of the following species is paramagnetic?

Question # 20

The bond angle depends upon the

Question # 21

Which is made by coordinate covalent bond

Question # 22

Which of the following phenomena will occur when two atoms of the elements having same spin of electron approach for bonding?

Question # 23

Which of the hydrogen halides has the highest percentage of ionic character

Question # 24

Three sp2hybrid are co-planar at an angle of

Question # 25

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

Question # 26

SnCI2have ______ shape

Question # 27

Shape of CIO3is

Question # 28

Generally the bond formed by metals with non-metals is

Question # 29

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

Question # 30

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

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ECAT Chapter 6 Important MCQ's

Sr.# Question Answer
1 The number of bonds in nitrogen molecule is
2 Ionic radius, in a period from left to right
A. Increases
B. Decreases
C. Decreases then increases
D. Increases and decreases
3 The number of antibonding electron pairs in O2-molecular ion on the basis of MOT is
A. 4
B. 3
C. 2
D. 5
4 Which of the following molecules have multiple bonds
A. CH4
B. C2H4
C. C2H6
D. CCI4
5 In a group the atomic size increase downward due to
A. Addition of electronic shells
B. Increase in the proton number
C. Repulsion of electrons
D. All of the above
6 B-atom in BF3has
A. sp3hybridization
B. sp2hybridization
C. sp hybridization
D. no hybridization
7 Which of the following hydrides has the lowest boiling point?
A. H2O
B. H2S
C. H2S3
D. H2Te
8 An ionic compound M2S3is formed by the metal M,, the metal is
A. Ca
B. Ba
C. K
D. Al
9 All covalent bonds formed between the two atoms are non-polar when
A. Covalent bond between two non-metal atoms
B. Covalent bond between metal and non-metal
C. Covalent bond between two atoms of same element
D. Covalent bond between metal atoms
10 Antibonding MO is formed by
A. Addition of atomic orbitals
B. Substraction of atomic orbitals
C. Multiplication of atomic orbitals
D. None of these

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