MDCAT Chemistry Chapter 9 MCQ Test With Answer for (Periods)

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MCQ's Test For MDCAT Chemistry Chapter 9 Period Online Test

Try The MCQ's Test For MDCAT Chemistry Chapter 9 Period Online Test

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MDCAT Chemistry Chapter 9 Period Online Test

00:00
Question # 1

Which one of the followings has polar covalent bonds hut is overall nom-polar molecule:

Question # 2

What is true for a molecule with standard geometry

Question # 3

At compromise distance the forces dominating between atoms are

Question # 4

Energy of atom in compound is

Question # 5

Which one is a non-polar compound?

Question # 6

Carbon-Carbon double bond length in C3H6

Question # 7

Bond will be covalent when electronegativity difference of bonded atom is

Question # 8

The elements for which the value of ionization energy is low can

Question # 9

Among the following molecules, which one has coordinate covalent (dative) bond?

Question # 10

The ionization energy of hydrogen atom is

Question # 11

Mostly ionic compounds are produced between elements of group

Question # 12

H3O+ can't accept a Ip because

Question # 13

A molecule that has polar bonds but is overall non - polar

Question # 14

Which one of the following has zero dipole moment

Question # 15

what is the exact value of angle in BF3

Question # 16

Which of the following molecule has zero dipole moment?

Question # 17

Total number of valence electrons in phosphonium ion (PH4-) is

Question # 18

A molecule which contains two lone pairs and two bond pairs of electrons in valence shell of central atom, geometrical shape of molecules will be

Question # 19

Greater shielding effect corresponds to ionization potential value

Question # 20

pi-bond can be formed by sideways overlap of

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Prepare Complete Set Wise MDCAT Chemistry Chapter 9 Period Online Test MCQs Online With Answers


In this topic,Student should be able to:

a) Explain and use the terms: rate of reaction; activation energy; catalysis; rate equation; order of reaction; rate constant; half-life of a reaction; ratedetermining step.

b) Explain qualitatively, in terms of collisions, the effect of concentration changes on the rate of a reaction.

c) Explain that, in the presence of a catalyst, a reaction has a different mechanism, i.e. one of lower activation energy.

d) Describe enzymes as biological catalysts which may have specific activity.

e) Construct and use rate equations of the form Rate = k[Am[Bn with special emphasis on: i) Zero order reaction ii) 1 st order reaction iii) 2 nd order reaction

f) Show understanding that the half-life of a first-order reaction is independent of initial concentration and use the half-life to calculate order of reaction.

g) Calculate the rate constant from the given data. h) Name a suitable method for studying the rate of a reaction, from given information.

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Sr.# Question Answer
1 Which one of the following has zero dipole moment
A. NH3
B. CHCI3
C. H2O
D. BF3
2 lonic bond is produced after complete transfer of
A. nucleus
B. neutrons
C. electrons
D. protons
3 In a period the atomic radii
A. increase
B. decrease
C. remain same
D. first increase, then decreased
4 The ionization energy
A. generally increases from left to right in a period
B. increases from top to bottom in a group
C. does not change in a period
D. does not change in a group
5 In a group, the atomic radii from top to bottom
A. increase
B. decrease
C. don't change
D. show variable trend
6 Polarity of a molecule is expressed in terms of
A. Bond strength
B. Dipole moment
C. Bond length
D. Shape
7 pi-bond can be formed by sideways overlap of
A. s-orbital
B. d-orbital
C. p-orbital
D. sp orbital
8 At compromise distance the forces dominating between atoms are
A. repulsive forces
B. attractive forces
C. Dipole induced dipole force
D. H-bonding
9
For formation of ionic bond, electronegativity difference should be
A. Equal to zero
B. Equal to 0.5
C. More then 1.7
D. Less than 1.7
10 Bonding in MgO is an example of
A. lonic bond
B. Polar bond
C. Covalent bond
D. Coordination covalent bond
11 A molecule that has polar bonds but is overall non - polar
A. IF
B. CCl4
C. PCI3
D. All
12 Covalent bonds are
A. directional
B. Bidirectional
C. Multidirectional
D. Non directional
13 what is the exact value of angle in BF3
A. 90
B. 104.51
C. 119.5
D. 120°
14 What will be the shape of a molecule which containstwo sigma bond pairs and one lone pair?
A. Linear
B. V shape
C. Tetragonal
D. Triangular
15 H3O+ can't accept a Ip because
A. it has positive charge
B. The central atom is not electron deficient
C. The shell of oxygen has reached its limit
D. it already has a coordinate bond
16 The elements for which the value of ionization energy is low can
A. Gain electrons readily
B. Lose electron less readily
C. Gain electrons with difficulty
D. Lose electron readily
17 Energy required to remove electron from an atom
A. Ionization potential
B. Electronegativity
C. Electropositivity
D.
Electron affinity
18 Total number of valence electrons in phosphonium ion (PH4-) is
A. 8
B. 9
C. 12
D. 10
19 Bond will be covalent when electronegativity difference of bonded atom is
A. Equal to 1.7
B. between 0.5 to l.7
C. Greater to 1.7
D. zero

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