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

Mention whether it is physical or chemical changes : Heating of an iron rod to red hot

2 / 25

Sate the reactions exothermic or endothermic in nature: Dissolution of sodium hydroxide in water

3 / 25

The following reaction is used for the preparation of oxygen gas in the laboratory: 2KClO3(s) Heat ⎯ → Catalyst ⎯⎯⎯ 2KCl(s) + 3O2(g) Which of the following statement(s) is/are correct about the reaction?

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

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

7 / 25

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

  1. The higher the pH, the stronger the acid

  2. The higher the pH, the weaker the acid

  3. The lower the pH, the stronger the base

  4. The lower the pH, the weaker the base

8 / 25

Name the acid along present in ant sting

9 / 25

What types of ions are formed when a base is dissolved in water ?

10 / 25

Hydrogen is used in manufacture

11 / 25

Which of the following declaration about the modern periodic table is accurate?

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

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

14 / 25

Which of the following elements would lose an electron with ease?

15 / 25

The atomic number of an element is 20, its electronic configuration.

16 / 25

Which of the followings is the major constituent of the liquefied petroleum gas?

17 / 25

The property of self-linkage among identical atoms to form long chain compounds is known as:

18 / 25

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

19 / 25

The molecular formula of Ethanol

20 / 25

The next homologue of C2H4

21 / 25

Which one of the following properties is not commonly exhibited by ionic compounds?

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 following Metal have very low melting points?

24 / 25

Metal that can be cut by knife

25 / 25

Give the formula of the stable binary compound that would be formed by the combination of following pair of elements: Mg and N2

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