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

What type of reaction is represented by: A + BC → AC + B ?

2 / 25

Why are anti-oxidants added to fat and oil containing food items?

3 / 25

On heating blue coloured powder of copper (II) nitrate in a boiling tube, copper oxide (black), oxygen gas and a brown gas X is formed. Identify the brown gas X evolved.

4 / 25

Which of the subsequent does show an oxidation reaction

5 / 25

Three beakers labelled as A, B and C, each containing 25 ml of water, were taken. A small amount of NaOH, anhydrous CuSO4 and NaCl were added to the beakers A, B and C respectively. It was observed that there was an increase in the temperature of the solutions contained in beakers A and B, whereas in the case of beaker C, the temperature of the solution fell. Which one of the following statement(s) is (are) correct?

  1. In beakers A and B, exothermic process has occurred.

  2. In beakers A and B, endothermic process has occurred

  3. In beaker C, exothermic process has occurred

  4. In beaker C, endothermic process has occurred.

6 / 25

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

7 / 25

What will take place when the solution of an acid is blend with the solution of a base in a test tube?

  1. The temperature of the solution increases

  2. The temperature of the solution decreases

  3. The temperature of the solution remains the same

  4. Salt formation takes place

8 / 25

The chemical used in manufacture of soaps

9 / 25

The chemical used for cleaning swimming pools

10 / 25

Washing soda is prepared from

11 / 25

As claimed by Mendeleev’s periodic law, the elements were arranged in the periodic table in the order of:

12 / 25

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

13 / 25

Which of the subsequent elements will form an acidic oxide?

14 / 25

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

15 / 25

Which among the following has larger size of atoms?

16 / 25

Which of he following compounds of carbon does not consist of ions?

17 / 25

The formula of cyclopentane

18 / 25

Ethane is

19 / 25

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

20 / 25

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

21 / 25

Which one of the following metals does not respond with cold as well as hot water?

22 / 25

Which among the following Declaration is incorrect for magnesium metal?

23 / 25

Which metal can be displaced by copper from its salt solution?

24 / 25

Why do ionic compounds conduct electricity in molten state? Because

25 / 25

Name one non-metal that exist in liquid state at room temperature.

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