Conservation Of Mass -Multiple Choice Questions Quiz

Interactive MCQs on “Conservation Of Mass”:

Solve the following 10 questions. Only one option is correct. Click on the “Submit” button when done. Click on the “embed” button to use this quiz on your website. Click on “WhatsApp” to share this quiz.

Question 1: What does the law of conservation of mass state?

(a) Mass can be created but not destroyed
(b) Mass can be destroyed but not created
(c) Mass cannot be created or destroyed
(d) Mass is constant in a closed system

Question 2: In a chemical reaction, if the total mass of the reactants is 50 grams, what will be the total mass of the products?

(a) 50 grams
(b) Less than 50 grams
(c) More than 50 grams
(d) It depends on the type of reaction

Question 3: During a chemical reaction, a piece of magnesium metal (24 grams) reacts with oxygen (16 grams) to form magnesium oxide. What will be the mass of the magnesium oxide formed?

(a) 40 grams
(b) 24 grams
(c) 16 grams
(d) 8 grams

Question 4: What is the mathematical expression for the law of conservation of mass?

(a) Mass = Volume x Density
(b) Mass = Force / Acceleration
(c) Mass = Weight / Gravity
(d) Mass of Reactants = Mass of Products

Question 5: Which of the following scenarios violates the law of conservation of mass?

(a) Burning of a candle
(b) Melting of an ice cube
(c) Dissolving sugar in water
(d) Mixing baking soda and vinegar

Question 6: In a closed container, a gas cylinder is weighed before and after the gas is released. What will the difference in weight indicate?

(a) The mass of the gas
(b) The density of the gas
(c) The volume of the gas
(d) The pressure of the gas

Question 7: Which branch of science is primarily concerned with the law of conservation of mass?

(a) Physics
(b) Chemistry
(c) Biology
(d) Geology

Question 8: The law of conservation of mass is an example of which broader scientific principle?

(a) Law of conservation of energy
(b) Law of inertia
(c) Law of universal gravitation
(d) Law of motion

Question 9: Which scientist is credited with the formulation of the law of conservation of mass?

(a) Isaac Newton
(b) Galileo Galilei
(c) Albert Einstein
(d) Antoine Lavoisier

Question 10: In an open system, can the law of conservation of mass still be applied?

(a) Yes, it always applies regardless of the system's openness
(b) No, it only applies to closed systems
(c) It depends on the specific situation
(d) Only if the system is in a gaseous state