Notes

  • This quiz contains 10 question from Chapter 1 – Chemical Reactions and Equations
  • Each question carry one mark
  • You can practice the quiz till the time you are prefect.
0

Science : Ch 01 - Chemical Reactions and Equations

This test is designed based on NCERT Syllabus for Class 10 Topics : Chemical Reactions and Equations

  • Each time random 15 questions will be displaced
  • So retake the quiz till you have mastered all the questions

1 / 15

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

2 / 15

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

3 / 15

Identify the reducing agent in the following reactions: 2H2 + O2 → 2H2O

4 / 15

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.Name the type of reaction taking place.

5 / 15

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?

6 / 15

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

7 / 15

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

8 / 15

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

9 / 15

Strong heating of ferrous sulphate leads to the formation of a brown solid and two gases. This reaction can be designated as:

10 / 15

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?

11 / 15

One of the following processess doesnot require a chemical reaction:

12 / 15

The following reaction is an example of a: 4NH3(g) + 5O2(g) → 4NO(g) + 6H2O(g)

  1. Displacement reaction
  2. Combination reaction
  3. Redox reaction
  4. Neutralisation reaction

13 / 15

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

14 / 15

Barium chloride on reacting with ammonium sulphate forms barium sulphate and ammonium chloride. Which of the following correctly represents the type of reaction involved?

  1. Displacement reaction
  2. Precipitation reaction
  3. Combination reaction
  4. Double displacement reaction

15 / 15

Which of the following are combination reactions?

  1. KClO3   →(Heat)→ 2KCl + 3O2
  2. MgO + H2O → Mg(OH)2
  3. 4Al + 3O2 → 2Al2O3
  4. Zn + FeSO4 →ZnSO4 + Fe

Your score is

0%

Leave a Reply 1

Your email address will not be published. Required fields are marked *


A WordPress Commenter

A WordPress Commenter

Hi, this is a comment.
To get started with moderating, editing, and deleting comments, please visit the Comments screen in the dashboard.
Commenter avatars come from Gravatar.