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

Which of the following species is paramagnetic?

Question # 2

The ionic bonds are

Question # 3

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

Question # 4

The electron affinity of chlorine may be represented by the equation

Question # 5

Which of the following has zero depole-moment?

Question # 6

The degree of polarity of molecule is known as its

Question # 7

Ionic radius, in a period from left to right

Question # 8

Coordinate covalent bond is present in the molecules

Question # 9

The geometry of 4 sp3hybrid orbitals on an atom is

Question # 10

Generally ionization energy of atoms decreases by

Question # 11

SnCI2have ______ shape

Question # 12

The covalent bonds are

Question # 13

Which of the following has unchanged valency?

Question # 14

B-atom in BF3has

Question # 15

When of the following is isolelectronic with krypton

Question # 16

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

Question # 17

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

Question # 18

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

Question # 19

In sp2hybridization bond angle is _____

Question # 20

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

Question # 21

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

Question # 22

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

Question # 23

The atomic radius of hydrogen is 37

Question # 24

Which of the following is a polar molecules

Question # 25

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

Question # 26

Covalent compounds are soluble in

Question # 27

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

Question # 28

The driving force for making a bond is

Question # 29

Molecular orbital picture of N2 indicates

Question # 30

Inter molecular forces in solid hydrogen are

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ECAT Chemistry Chapter 6 Important MCQ's

Sr.# Question Answer
1 When of the following is isolelectronic with krypton
A. Ca++
B. Al+++
C. Br-1
D. I-1
2 Size of an anion is increased as compared to its atom because of the
A. Addition of new shell
B. Repulsion of electrons in the valence shell
C. Decrease in nuclear charge
D. Increase in the unclear charge
3 Which of the following molecules has unpaired electrons in anti-bonding molecular orbitals?
A. O2
B. N2
C. Br2
D. F2
4 XeF4has shape of
A. Sphere
B. Trigonal bipyramidal
C. Tetrahedral
D. Square planar
5 The ionic bonds are
A. Unidirectional
B. Bi-directional
C. Non-directional
D. Multi-directional
6 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
7 Which of the following has polar bond
A. O2
B. N2
C. HCl
D. Cl2
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 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 The formation of compounds like PF5, BCI3, SF6indicates that
A. These halides are ionic
B. These halides are covalent
C. They are Lewis acids
D. Octet rule not obeyed so the rule is not universal

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