Class 10 Science Chapter 1 MCQ

Class 10 Science Chapter 1 MCQ (Multiple Choice Questions) of Chemical Reactions and Equations. All the questions are taken from NCERT Textbook, ten years papers, exemplar books, CBSE Sample papers and different popular books for academic session 2020-21.

There are 25 sets of MCQ tests containing total of 125 questions with answers and explanation. We have uploaded all the questions carefully. For any error, please take screen shot and send us for modification.

Class 10 Science Chapter 1 MCQ for 2020-21

Class: 10 Science
Contents:Multiple Choice Questions – MCQ Tests

Class 10 Science Chapter 1 MCQ Tests 2020-21

Class 10 Science Chapter 1 MCQ are given below. There total of 5 questions in each test. You can attend more and more test to evaluate your practice. MCQs are now important for CBSE Exams also. Answers and explanation of each question is given just below the questions. If you have any doubt, please ask in discussion forum.

Q1

Naveen appeared in class test where he wrote some statements but he confused to know the incorrect statement. Would you help him to know that?

[A]. All the decomposition reaction are endothermic reactions.
[B]. The decomposition of calcium carbonate is an endothermic reaction.
[C]. Photosynthesis is an endothermic reaction.
[D]. Electrolysis of water form hydrogen and oxygen is an exothermic reaction.
Q2

In the double displacement reaction between aqueous potassium iodide and aqueous lead nitrate, a yellow precipitate of lead iodide is formed. While performing the activity if lead nitrate is not available, which of the following can be used in place of lead nitrate?

[A]. Lead sulphate (insoluble)
[B]. Lead acetate
[C]. Ammonium nitrate
[D]. Potassium sulphate
Q3

Consider the given statements and choose the incorrect one:

[A]. The bubbles of hydrogen gas are produced, when zinc granules reacts with dilute sulphuric acid.
[B]. Hydrogen gas is evolved when magnesium reacts with a dilute acid.
[C]. Hydrogen gas is evolved when dilute hydrochloric acid is poured over sodium carbonate.
[D]. None of the above.
Q4

Soni is writing some statements. She wants to know in which of the following statements is or are incorrect?

[A]. Chemical reaction are the process in which new substances with new properties are formed.
[B]. Only a re-arrangement of atoms takes place in a chemical reaction.
[C]. In a chemical reaction, reactants are transformed into products.
[D]. In magnesium burning, oxygen are the only reactants.
Q5

Which of the following is not a physical change?

[A]. Boiling of water to give water vapour.
[B]. Melting of ice to give water.
[C]. Dissolution of salt in water.
[D]. Combustion of Liquefied Petroleum Gas (LPG).

Prepare Class 10 Science Chapter 1 Chemical Reactions and Equations from NCERT Textbook and then practice the questions given in the end of the chapter. At this stage MCQs are important for the revision of concepts and missing terms related to the chapters. If you read 5 times the same chapter from NCERT, every time you will get something new again. It means we have to revise the chapter again and again.

Is Class 10 Science Chapter 1 Chemical Reactions and Equations important for MCQ?

There are so many questions in chapter 1 of class 10 science, which may be asked in CBSE Board exams as MCQs.

Should I prepare Activities also, given in Chapter 1 of class 10 Science, for MCQ?

Activities are important not only for MCQ, but the theoretical questions also. In CBSE 2020 exams, there were three questions based on activities.

Are MCQ asked from back exercises of Class 10 Science chapter 1?

MCQs can be asked from entire book, whether it is intext questions or end exercises questions.

How do I prepare for MCQs of 10th Science Chapter 1?

Prepare the chapter 1 NCERT Textbook of class 10 science and read each important reaction carefully. MCQs are generally asked from with in the chapter text.