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 has unchanged valency?

Question # 3

N-atom forms three covalent bonds, its electronic configuration is

Question # 4

Noble gases have the electronic configuration with their valance shell ns2np6except one

Question # 5

Inter molecular forces in solid hydrogen are

Question # 6

Hydrogen chloride molecule contains

Question # 7

One of the following bonds is polar but compound is non-polar

Question # 8

Tripple bond is present in

Question # 9

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

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

Covalent compounds are soluble in

Question # 12

The number of electron pairs shared in carbon tetrachloride molecule is

Question # 13

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

Question # 14

Coordinate covalent bond is present in the molecules

Question # 15

In OF2, number of bond pairs and Ione paris of electrons are respectively

Question # 16

Molecular orbital picture of N2 indicates

Question # 17

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

Question # 18

Mg becomes isoelectronic with neon when it

Question # 19

Which of the following has polar bond

Question # 20

The electronegativity of elements in a period from left to right

Question # 21

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

Question # 22

In which of the following theories the hybridizationis considered

Question # 23

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

Question # 24

According to MO Theory, the species O2+ possesses

Question # 25

Maximum hydrogen bonds in water are

Question # 26

The electronegativeities of F,Cl,Br and I are 4.0,3.0,2.8,2.5 respectively.Hydrogen halide with a high percentage of ionic character is

Question # 27

The number of bonds in nitrogen molecule is

Question # 28

The shape of CIO-3according to valence shell electron pair repulsion theory will be

Question # 29

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

Question # 30

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

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ECAT Chemistry Chapter 6 Important MCQ's

Sr.# Question Answer
1 The tendency of an atom to attract shared electron pair towards itself is called
A. Covelent bond
B. Electronegativity
C. Ionization potential
D. Electronic affinity
2 Generally the bond formed by metals with non-metals is
A. Ionic
B. Covalent
C. Polar
D. Non- polar
3 Outer shells of two elements X and Y have two and six electrons respectively. If they combine, the expected formula of compound will be
A. XY
B. X2Y
C. X2Y3
D. XY2
4 Which of the following is a polar molecules
A. Carbon dioxide
B. Carbon tetrachloride
C. Methanol
D. Ethane
5 Which of the following molecules have multiple bonds
A. CH4
B. C2H4
C. C2H6
D. CCI4
6 One of the following bonds is polar but compound is non-polar
A. H2O
B. NH3
C. HCl
D. CO2
7 Number of sigma bonds in P4O10is
A. 6
B. 7
C. 17
D. 16
8 The bond angles in methane CH4are equal to
A. 109.5°
B. 107.5°
C. 104.5°
D. 120°
9 The three N - Hσ-bonds are made by
A. sp3- s overlap
B. sp2- s overlap
C. P - p overlap
D. sp - overlap
10 When an electron is absorbed in an empty or partially filled orbital of an atom, the energy released is called
A. Ionization energy
B. Potential energy
C. Electron affinity
D. Bond energy

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