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

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

3 / 25

State the reactions are exothermic or endothermic in nature: Decomposition of ferrous sulphate

4 / 25

One of the following processess doesnot require a chemical 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

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:

7 / 25

Which of the following solutions in water does not conduct electricity?

8 / 25

The chemical formula for plaster of Paris is :

9 / 25

Which of the following substances will not give carbon dioxide on treatment with dilute acid?

10 / 25

The source of oxyalic acid is

11 / 25

Which among the following elements has the largest atomic radii?

12 / 25

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

13 / 25

Three elements B, Si and Ge are:

14 / 25

Which of the following is the outermost shell for elements of period 2

15 / 25

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

16 / 25

The I.U.P.A.C name of CH3CH2CH=CH2 is?

17 / 25

The formula of cyclopentane

18 / 25

Unsaturated hydrocarbon undergoes incomplete combustion and burns with

19 / 25

Saturated hydrocarbons contains

20 / 25

The next homologue of C2H4

21 / 25

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

22 / 25

Why should we not throw small pieces of sodium into a sink in the laboratory? Because of

23 / 25

The Most malleable and ductile metal

24 / 25

Give the formula of the stable binary compounds that would be formed by the combination of following pair of elements: K and O2

25 / 25

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

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