CBSE Class 10 Science Chapter 1 Chemical Reactions and Equations Multiple Choice Questions with Answers. MCQ Class 10 Science Chemical Reactions and Equations with Answers was Prepared Based on Latest Exam Pattern. Students can solve NCERT Class 10 Science Chemical Reactions and Equations MCQs with Answers to know their preparation level.
Multiple Choice Questions - Set - 5
Question 1:Â
Give the ratio in which hydrogen and oxygen are present in water by
volume.
(a) 1:2
(b) 1:1
(c) 2:1
(d) 1:8
Correct Answer – (C)
Question 2 :Â
Which of the following reactions can also be termed as thermal decomposition reaction?
(a) Combination Reaction
(b) Decomposition Reaction
(c) Displacement reaction
(d) Double displacement reaction
Correct Answer – (B)
Question 3 :Â
MnO2 + 4HCl → MnCl2 + H2O + Cl2 The oxidising agent is
(a) MnO2
(b) HCl
(c) MnCl2
(d) Ag + Zn(NO3)3
Correct Answer – (A)
Question 4 :Â
The brown gas evolved on heating of copper nitrate is
(a) O2
(b) NO2
(c) N2
(d) NO
Correct Answer – (B)
Question 5 :Â
Which one of the following processes involve chemical reactions ?Â
(a) Storing of oxygen gas under pressure in a gas cylinder
(b) Liquefaction of air
(c) Keeping petrol in a china dish in the open
(d) Heating copper wire in presence of air at high temperature
Correct Answer – (D)
Question 6 :Â
A student performs an experiment to form aluminium chloride from aluminium and chlorine.
Which options give the chemical equation of the reaction?
(a) Al + Cl2 → AlCl2
(b) 2Al + Cl2 → 2AlCl
(c) 2Al + 3Cl2 → 2AlCl3
(d) 3Al + 3Cl2 → 3AlCl3
Correct Answer – (C)
Question 7 :Â
Sodium and chlorine are reacted and as a result, sodium chloride is formed which is also called table salt. What option gives the reactants and products of the reaction?
(a) reactants – sodium; products – chlorine
(b) reactants – sodium and table salt; products – chlorine
(c) reactants – tables salt; products – sodium and chlorine
(d) reactants – sodium and chlorine; products – sodium chloride
Correct Answer – (D)
Question 8 :Â
Zinc reacts with silver nitrate to form which compounds?
(a) Zn(NO3)2Â + Ag
(b) ZnNO3Â + Ag
(c) AgNO3Â + Zn(NO3)2
(d) Ag + Zn(NO3)3
Correct Answer – (A)
Question 9 :Â
In which of the following chemical equations, the abbreviations represent the correct states of the reactants and products involved at reaction temperature ?Â
(a) H2(l) + O2(l) → 2H2O(g)
(b) H2(g) + O2(l) → 2H2O(l)
(c) H2(g) + O2(g) → 2H2O(l)
(d) H2(g) + O2(g) → m2O(g)
Correct Answer – (C)
Question 10 :Â
Which of the following gases can be used for storage of fresh sample of an oil for a long time?Â
(a) Carbon dioxide or oxygen
(b) Nitrogen or oxygen
(c) Carbon dioxide or helium
(d) Helium or nitrogen
Correct Answer – (D)
- NCERT Solutions Class 10 Science Chapter 1 : Chemical Reactions and Equation
- NCERT Solutions Class 10 Science Chapter 2 : Acids, Bases & Salts
- NCERT Solutions Class 10 Science Chapter 3 : Metals and Non-metals
- NCERT Solutions Class 10 Science Chapter 4 : Carbon And Its Compounds
- NCERT Solutions Class 10 Science Chapter 5 : Periodic Classification of Elements
- NCERT Solutions Class 10 Science Chapter 6 : Life Precesses
- NCERT Solutions Class 10 Science Textbook Download
