MCQ Atoms and Molecules Chapter 3 Class 9 Science

Advertisement

MCQ’s For All Chapters – Science Class 9th

1. The term molecule means

Question 1 of 15

2. The smallest particle showing properties of a substance is

Question 2 of 15

3. Oxygen molecule contains

Question 3 of 15

4. Ozone molecule has

Question 4 of 15

5. The atomicity of phosphorus is

Question 5 of 15

6. The atomicity of sulphur is

Question 6 of 15

7. The ratio of masses of hydrogen and oxygen in water is

Question 7 of 15

8. A positively charged ion is called

Question 8 of 15

9. Negatively charged ions are called

Question 9 of 15

10. Na⁺ ion is known as

Question 10 of 15

11. Cl⁻ ion is

Question 11 of 15

12. Valency of oxygen is

Question 12 of 15

13. The valency of nitrogen in ammonia (NH₃) is

Question 13 of 15

14. The chemical formula for hydrogen chloride is

Question 14 of 15

15. The formula of hydrogen sulphide is

Question 15 of 15


 

Comments

  1. Hamiki says:
    July 9, 2025 at 5:50 pm

    Nice, but keep improving. I’m not interested in fake or useless apps — you are best for me.

    Reply
  2. Khadiza aktar says:
    November 5, 2024 at 7:46 pm

    Science

    Reply
  3. Lemba says:
    October 31, 2024 at 11:30 am

    I have collected 100%

    Reply
  4. Arindam Roy says:
    June 29, 2024 at 11:36 am

    Arindam Roy class9 Roll 3

    Reply
  5. Arindam Roy says:
    June 29, 2024 at 11:35 am

    Science

    Reply

Leave a Reply

Your email address will not be published. Required fields are marked *

Advertisement

CBSE Board English Medium

CBSE Board Hindi Medium

बिहार बोर्ड

उत्तर प्रदेश बोर्ड

महाराष्ट्र बोर्ड

मध्य प्रदेश बोर्ड

ગુજરાત બોર્ડ

PSC Exam Preparation

Install App

Install our app for the best experience!