Punjab 9th Class Chemistry Chapter 4 Structure of Molecules Mcqs Test Online Solved With Right Answers

Question 1 of 9

Chemistry

1. Which of the following atoms will form cation.

Atomic Number/15

Atomic Number/20

Atomic Number/17

Atomic Number/18

Question 1 of 9

Question 2 of 9

2. In the formation of AIF₃, aluminum atom loses ___________ electrons.

2

3

4

1

Question 2 of 9

Question 3 of 9

3. Which of the following is not true about the formation of Na₂S:

Each sulphur atom gains one electron

Each sodium atom loses one electron

Sulphur forms anion

Sodium forms cation

Question 3 of 9

Question 4 of 9

4. Silicon belongs to Group IVA. It has ___________ electrons in the valence shell

6

2

4

3

Question 4 of 9

Question 5 of 9

5. Identify the covalent compound

NaCl

H₂O

KF

MgO

Question 5 of 9

Question 6 of 9

6. Phosphorus belongs to third period of Group VA. How many electrons it needs to complete its valence shell.

2

4

3

5

Question 6 of 9

Question 7 of 9

7. Which of the following atoms will form an ion of charge -2?

Atomic Number/14 Mass Number/28

Atomic Number/10 Mass Number/20

Atomic Number/12 Mass Number/24

Atomic Number/8 Mass Number/8

Question 7 of 9

Question 8 of 9

8. Which of the following atoms will not form cation or anion.

A (Atomic No. 16)

D (Atomic No. 19)

B (Atomic No. 17)

C (Atomic No. 18)

Question 8 of 9

Question 9 of 9

9. Which of the following atoms obey duplet rule?

N₂

H₂

O₂

F₂

Question 9 of 9

Punjab 9th Class Chemistry Chapter 4 Structure of Molecules Mcqs Test Online

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Punjab 9th Class Chemistry Chapter 4 Structure of Molecules Mcqs Test Online

Punjab 9th Class Chemistry Chapter 4 Structure of Molecules Punjab 9th Class

Chemistry

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