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

In a group the atomic size increase downward due to

Question # 2

The tendency of an atom to attract shared electron pair towards itself is called

Question # 3

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

Question # 4

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

Question # 5

The boiling point of heavy water is

Question # 6

Which of the following charge

Question # 7

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

Question # 8

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

Question # 9

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

Question # 10

The bond order for He2molecule is

Question # 11

On the basis of VSEPR theory SO2is a

Question # 12

SnCI2have ______ shape

Question # 13

Planar geometry of molecules is due to

Question # 14

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

Question # 15

Which of the following hydrides has the lowest boiling point?

Question # 16

In H2O molecule the bond angle is

Question # 17

The covalent bonds are

Question # 18

In which of the following theories the hybridizationis considered

Question # 19

Three sp2hybrid are co-planar at an angle of

Question # 20

The formation of compounds like PF5, BCI3, SF6indicates that

Question # 21

Which of the following molecules have its central atom sp2hybridized

Question # 22

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

Question # 23

The geometry of 4 sp3hybrid orbitals on an atom is

Question # 24

Covalent compounds are soluble in

Question # 25

Shielding effect intervening electrons causes

Question # 26

Which of the following statements is not correct regarding bonding molecular orbitals?

Question # 27

Coordinate covalent bond is present in the molecules

Question # 28

B-atom in BF3has

Question # 29

Which one of these is weakest?

Question # 30

Which of the following has polar bond

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Sr.# Question Answer
1 Generally electron affinities for elements in a period from left to right
A. Decreases
B. Increases
C. Remain same
D. Increases alternatively
2 In sp2hybridization bond angle is _____
A. 120°
B. 180°
C. 109.5°
D. None
3 Which of the following molecules has a net dipole moments
A. CO2
B. CS2
C. SO2
D. CCI4
4 The covalent bonds are
A. Unidirectional
B. Bi-directional
C. Non-directional
D. Multi-directional
5 According to VSEPR theory, the shape of the water molecule is
A. Octahedral
B. Distorted tetrahedral
C. Planar triangle
D. Linear
6 From the difference between expected bond energies for the normal covalent bond and experimentally determined values Pauling calculated the values of
A. Ionization potential of elements
B. Electron affinity of elements
C. Electronegativity of elements
D. Bond length
7 Electronegativity values of the elements F, CI and Br vary
A. F > CI > Br
B. Br > CI > F
C. Cl > Br > F
D. CI > F > Br
8 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
9 Which of the following phenomena will occur when two atoms of the elements having same spin of electron approach for bonding?
A. Orbital overlap will not occur
B. Bonding will not occur
C. Both (A) and (B) are correct
D. None of the above are correct
10 The Electro-negatively difference for ionic bond must be greater than
A. 1.6
B. 1.7
C. 1.8
D. 1.0

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