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

Which reaction takes place when layer of silver deposit on copper wire when dipped in silver nitrate solution?

2 / 25

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

3 / 25

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

4 / 25

Mention whether it is physical or chemical changes:- Burning of Liquefied Petroleum Gas (LPG)

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

A visually challenged student, has to carryout a lab test to detect the presence of acid in a given solution. The acid-base indicator favoured by him will be:

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 subsequent is/are true when HCl(g) is passed through water?

  1. It does not ionise in the solution as it is a covalent compound

  2. It ionises in the solution

  3. It gives both hydrogen and hydroxyl ions in the solution.

  4. It forms hydronium ion in the solution due to the combination of hydrogen ion with water molecule

9 / 25

The source of lactic acid is

10 / 25

The other name of methanoic acid is

11 / 25

Which among the following elements has the largest atomic radii?

12 / 25

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

13 / 25

Three elements B, Si and Ge are:

14 / 25

Modern Periodic Law States that

15 / 25

Is calcium?

16 / 25

A molecule of ammonia (NH3) has:

17 / 25

How many number of carbon atoms are joined in a spherical molecule of buckminsterfullerene?

18 / 25

The compounds formed by the sharing of electron pairs between two atoms.

19 / 25

The molecular formula of the fourth member of alkane series.

20 / 25

The next homologue of C2H4

21 / 25

Which of the subsequent quality is generally not shown by metals?

22 / 25

The solution of one of the following compounds will not conduct electricity. This compounds is:

23 / 25

The composition of aqua-regia is:

24 / 25

Which of the consecutive are not ionic compounds?

  • KCl

  • HCl

  • CCl4

  • NaCl

25 / 25

Which metal is less reactive?

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