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

When hydrogen sulphide gas is passed through a blue solution of copper sulphate, the colour of the solution fades and a black precipitate is obtained.Why does the colour of the solution fades?

3 / 25

Mention whether it is physical or chemical changes: Sublimation of solid ammonium chloride

4 / 25

In the electrolysis of water, name the gases liberated at cathode

5 / 25

Which among the following is (are) double displacement reaction(s)?

  1. Pb + CuCl2 → PbCl2 + Cu

  2. Na2SO4 + BaCl2 → BaSO4 + 2NaCl

  3. C + O2 → CO2

  4. CH4 + 2O2 → CO2 + 2H2O

6 / 25

identical volumes of hydrochloric acid and sodium hydroxide solutions of same concentration are mixed and the pH of the resulting solution is checked with a pH paper. What would be the colour obtained?

7 / 25

Which among the following is not a base?

8 / 25

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

  1. Higher the pH, stronger the acid

  2. Higher the pH, weaker the acid

  3. Higher the pH, stronger the base

  4. Lower the pH, weaker the base

9 / 25

What types of ions are formed when an acid is dissolved in water ?

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

The elements A, B, C, D and E have atomic number 9, 11, 17, 12 and 13 respectively. Which pair of elements belongs to the identical group?

13 / 25

What type of oxide would Eka-aluminium form?

14 / 25

Which is not true about the noble gases?

15 / 25

The metallic character vary across the period

16 / 25

Carbon exists in the atmosphere in the form of:

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 following substance produces brisk effervescence with baking soda solution?

19 / 25

Ethene is

20 / 25

The name of the fourth member of alkane series.

21 / 25

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

22 / 25

Which of the subsequent oxide(s) of iron would be obtained on prolonged reaction of iron with steam?

23 / 25

An element A is mushy and can be cut with a knife. This is very reactive to air and cannot be kept in open air. It reacts vigorously with water. Identify the element from the following:

24 / 25

Although metals form basic oxides, which of the subsequent metals form an amphoteric oxide?

25 / 25

which metal is more reactive?

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