Class 9 MCQs Tests

Chemistry 9 Chapter 3 Practice Test 7

ByMuhammad Zaman January 10, 2022October 29, 2022

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131

Class 9 Chemistry

Chapter 3

Practice MCQs Test No 7

1 / 10

Which element has the highest electronegativity?

2 / 10

Ionization results in the ejection of _____.

Nucleus

Neutrons

Protons

Electrons

3 / 10

Electronegativity refers to _____.

the ability of an atom to attract the electrons in a chemical bond toward itself

the energy required to remove an electron from a gaseous atom in the ground state.

the ability of an atom to attract the electrons toward nucleus

tendency of an atom to attract a shared electron pair towards itself

4 / 10

Element in group II A with smallest atomic radius is _____.

5 / 10

When atomic radius increases, electron affinity _____.

Remains constant

Becomes zero

Decreases

Increases

6 / 10

Which of the following has the highest electron affinity?

7 / 10

Atomic radii decreases because of

Increase in attractive forces of the nucleus and valence electrons

All of these

Increase in number of protons

Increas in number of valence electrons

8 / 10

Arrange the elements in decreasing ionization energy.

K>Na>Li

Li>Na>K

Li<Na<K

Li,Na,K

9 / 10

Ionization energy is a/an _____.

Bond making process

Bond breaking process

Anion formation

Cation formation

10 / 10

Electron affinity involves _____.

Addition of a proton to the nucleus

Removal of an electron from the outermost shell an atom

Addition of an electron to the outermost shell of an atom

Addition of an electron to the nucleus of an atom

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