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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

What happens when sodium sulphate solution is added to barium chloride solution?

2 / 25

Electrolysis of water is a decomposition reaction. The mole ratio of hydrogen and oxygen gases liberated during the electrolysis of water is:

3 / 25

which of the subsequent chemical equations do the abbreviations represent the correct states of the reactants and products involved at reaction temperature?

4 / 25

One of the following does not happen during a chemical reaction.

5 / 25

You are given the solution of lead nitrate. In order to obtain a yellow precipitate you should blend with it a solution of:

6 / 25

Which of the following gives the exact increasing order of acid strength?

7 / 25

If a few drops of a concentrated acid accidentally spills over the hand of a student, what should be done?

8 / 25

If 10 mL of H2SO4 is mixed with 10 mL of Mg(OH)2 of the same concentration, the resultant solution will give the following colour with universal indicator:

9 / 25

To preserve tooth decay we are advised to brush our teeth regularly. The nature of the toothpaste commonly used is:

10 / 25

The chemical used in manufacture of soaps

11 / 25

Organise the following elements in the order of their decreasing metallic character Na, Si, Cl, Mg, Al:

12 / 25

Which of the following elements does not lose an electron with ease?

13 / 25

Why does atomic radius decreases as we move from left to right in a period

14 / 25

The valency of an element vary across a period

15 / 25

The formulae of chlorides of Eka-silicon the elements predicted by Mendeleev.

16 / 25

Ester is formed by the reaction between:

17 / 25

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

18 / 25

The formula of cyclopentane

19 / 25

The strong electrostatic interactions between ions formed by the transfer of electrons

20 / 25

Saturated hydrocarbons contains

21 / 25

Non-metals are not lustrous. Which of the following non-metals is lustrous?

22 / 25

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

23 / 25

Which of the consecutive are not ionic compounds?

  • KCl
  • HCl
  • CCl4
  • NaCl

24 / 25

A Metal that exists in liquid state at room temperature

25 / 25

Non-metal that can exist in diferent forms

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