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

Generally ionization energy of atoms decreases by

Question # 2

During the formation of a chemical bond the potential energy of the system

Question # 3

The ionic bonds are

Question # 4

Which of the following hydrides has the lowest boiling point?

Question # 5

Maximum hydrogen bonds in water are

Question # 6

When of the following is isolelectronic with krypton

Question # 7

The nature of interparticle forces in benzene is

Question # 8

The covalent bonds are

Question # 9

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

Question # 10

H-bonding is not present in

Question # 11

XeF4has shape of

Question # 12

Covalent compounds are soluble in

Question # 13

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

Question # 14

Which of the following has unchanged valency?

Question # 15

Two H-atom combine to form a strong H2molecule due to

Question # 16

In H2O molecule the bond angle is

Question # 17

Which is made by coordinate covalent bond

Question # 18

Tripple bond is present in

Question # 19

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

Question # 20

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

Question # 21

The atomic radius of hydrogen is 37

Question # 22

The electronegativity of elements in a period from left to right

Question # 23

The equation for the first ionization energy of hydrogen is

Question # 24

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

Question # 25

Ionic radius, in a period from left to right

Question # 26

The three N - Hσ-bonds are made by

Question # 27

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

Question # 28

The force which holds the atoms together to form a compound is called

Question # 29

Which of the following geometry is associated with the compound in which the central atom assumes sp3d hybridization?

Question # 30

Number of sigma bonds in P4O10is

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ECAT Chemistry Chapter 6 Important MCQ's

Sr.# Question Answer
1 Hydrogen chloride molecule contains
A. Covalent bond
B. Double bond
C. Co-ordinate bond
D. Electrovalent bond
2 The bond angle H - O - H in ice ins closest to
A. 120° , 28'
B. 60°
C. 90°
D. 109°
3 Which of the following molecules have multiple bonds
A. CH4
B. C2H4
C. C2H6
D. CCI4
4 Which of the following has unchanged valency?
A. H
B. Na
C. Fe
D. Oxygen
5 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
6 The bond order O2molecule is
A. 1
B. 2
C. 3
D. Zero
7 The shape of gaseous SnCl2is
A. Tetrahedral
B. Linear
C. Angular
D. T-shaped
8 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
9 The overlapping of two partially filled atomic orbital is in such a way that the probability of finding the electron pair is maximum along the axis joining the two nuclei, the bond is
A. Sigma bond
B. Pi bond
C. Ionic bond
D. Non-polar bond
10 The degree of polarity of molecule is known as its
A. Dipole moment
B. Moment arm
C. Bond energy
D. Ionic character

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