CBSE Class X – Science Chemistry Exam (Full Syllabus)

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CBSE Class X – Science Chemistry Exam (Full Syllabus)

This test is designed based on NCERT Syllabus for Class 10 Topics of Science – Chemistry

  • Each time random 25 questions will be displaced from the question bank of 500 + Questions
  • So we recommend you to retake the quiz till you have mastered all the questions

1 / 25

Give an example of decomposition reaction taking place in our body.

2 / 25

Identify the reducing agent in the following reactions: 2H2O + 2F2 → 4HF + O2

3 / 25

Mention whether it is physical or chemical changes :Curdling of milk

4 / 25

Which of the following is not a physical change?

5 / 25

Which of the following gases can be used for the storage of fresh sample of an oil for a long duration?

6 / 25

Baking soda is a blend of:

7 / 25

Common salt other than being used in kitchen can also be used as the raw material for  making:

  1. Washing soda

  2. Bleaching powder

  3. Baking soda

  4. Slaked lime

8 / 25

Which of the following statements is correct about an aqueous solution of an acid and a base?

  1. The higher the pH, the stronger the acid

  2. The higher the pH, the weaker the acid

  3. The lower the pH, the stronger the base

  4. The lower the pH, the weaker the base

9 / 25

The source of Acetic acid is

10 / 25

The other name of methanoic acid is

11 / 25

Which of the specified elements A, B, C, D and E with atomic number 2, 3, 7, 10 and 30 respectively affiliated to the same period?

12 / 25

Which among the following elements has the largest atomic radii?

13 / 25

Which one of the following does not increase while moving down in group of the  periodic table?

14 / 25

Arrange the following elements in increasing order of their atomic radii:

15 / 25

Arrange the following elements in the order of their increasing non-metallic character Li, O, C, Be and F

16 / 25

A molecule of ammonia (NH3) has:

17 / 25

The electronic configuration of an element is found to be 2, 4. How many bonds can one carbon atom form in a compound?

18 / 25

Which of the followings is the major constituent of the liquefied petroleum gas?

19 / 25

A saturated hydrocarbon undergoes complete combustion and burns with

20 / 25

The compounds have low melting and boiling points.

21 / 25

Which one of the following four metals would be replaced from the solution of its salts by the other three metals?

22 / 25

The metals that float when dealt with water are:

23 / 25

Metal that is best conductor of electricity

24 / 25

Give the formula of the stable binary compound that would be formed by the combination of following pair of elements: Mg and N2

25 / 25

Name two metals having melting point less than 310 K (37°C).

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