Class 9 MCQs Tests

Chemistry 9 Chapter 3 Practice Test 6

ByMuhammad Zaman January 10, 2022October 29, 2022

Chemistry 9 Chapter 3 Practice Test 6

/10

131

Class 9 Chemistry

Chapter 3

Practice MCQs Test No 6

1 / 10

Ionization energy is measured in _____.

J/sec

kJ/h

kJ/mol

kW/mol

2 / 10

Which of these represents an element with a large electron affinity?

Ability to lose an electron easily to form a negative ion

Ability to gain an electron easily to form a positive ion

Ability to lose an electron easily to form a positive ion

Ability to gain an electron easily to form a negative ion

3 / 10

John Newland found the similarity in properties of every —— element.

4 / 10

Atomic number is discovered by

Moseley

Rutherford

Bohr

Dalton

5 / 10

Negative sign is given to electron affinity because energy is _____.

Gained

Remain same

No effect

Released

6 / 10

What is the period number of Nitrogen -7 ?

7 / 10

In general, ionization energy _____ going bottom to top within a group in the periodic table.

Increases

Remains unchanged

Becomes zero

Decreases

8 / 10

Valence shell configuration of Na is

1s2,2s2,2p6,3s1

3s1

2p6,3s1

2s2,2p6

9 / 10

The state required for Chlorine to release energy and form a uninegative ion is _____.

Solid molecules

Liquid atoms

Gaseous molecules

Gaseous atoms

10 / 10

Element having configuration 1s² belongs to group

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2 Comments

M.Ayaan says:
April 15, 2024 at 5:37 pm
Assalam O Alaikum. The eighth MCQ is wrong.
Ionization energy decreases down a group rather than increasing.
Reply
1. Muhammad Saeed says:
  April 15, 2024 at 11:42 pm
  Please read the MCQ carefully, bottom to top is written there, not top to bottom.
  Reply

Chemistry 9 Chapter 3 Practice Test 6

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