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 shape of the molecule SF2Cl2is

Question # 2

A molecule in which sp2hybrid orbitals are used by the central atom in forming covalent bonds in

Question # 3

Which is made by coordinate covalent bond

Question # 4

Which of the following has unchanged valency?

Question # 5

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

Question # 6

Generally the bond formed by metals with non-metals is

Question # 7

Which of the following molecules have multiple bonds

Question # 8

The degree of polarity of molecule is known as its

Question # 9

XeF4has shape of

Question # 10

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

Question # 11

The nature of interparticle forces in benzene is

Question # 12

The formation of compounds like PF5, BCI3, SF6indicates that

Question # 13

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

Question # 14

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

Question # 15

Which for the following has no dipole moment

Question # 16

Inter molecular forces in solid hydrogen are

Question # 17

The ionic bonds are

Question # 18

Planar geometry of molecules is due to

Question # 19

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

Question # 20

Which of the following molecules have sp3hybridized carbon

Question # 21

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

Question # 22

In a group the atomic size increase downward due to

Question # 23

Hydrogen chloride molecule contains

Question # 24

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

Question # 25

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

Question # 26

When elements of group I react with the elements of group VIA theory form

Question # 27

Which of the following species is paramagnetic?

Question # 28

According to MO Theory, the species O2+ possesses

Question # 29

Generally ionization energy of atoms decreases by

Question # 30

Which of the following hydrides has the lowest boiling point?

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ECAT Chemistry Chapter 6 Important MCQ's

Sr.# Question Answer
1 Which of the following molecules has unpaired electrons in anti-bonding molecular orbitals?
A. O2
B. N2
C. Br2
D. F2
2 Which one of these is weakest?
A. Ionest bond
B. Covalent bond
C. Metallic bond
D. Van der Waal's forces
3 In which of the following theories the hybridizationis considered
A. Vsepr
B. Lewis
C. Molecule orbital
D. Valence bond
4 H-bonding is not present in
A. Glycerine
B. Water
C. Hydrogen sulphide
D. Hydrogen fluride
5
Question Image
A. The ionization energy of A is high and electron affinity of B is low
B. The ionization energy of A is low and electron affinity of B is high
C. Both the ionization energy of A and electron off affinity of B are high
D. Both the ionization energy of A and electron affinity of B are low
6 Atomic number of Al is 13. When it forms ionic bond with oxygen the number of electrons lost by 1 Al atom is
A. 1
B. 2
C. 3
D. 4
7 In OF2, number of bond pairs and Ione paris of electrons are respectively
A. 2,6
B. 2,8
C. 2,10
D. 2,9
8 The bond order of individual C - C bond is benzene is
A. One
B. Two
C. Between one and two
D. One and two alternately
9 One of the following bonds is polar but compound is non-polar
A. H2O
B. NH3
C. HCl
D. CO2
10 Which of the following charge
A. Li
B. Be
C. H
D. He

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