Assertion and Reason Class 10 Chemistry Chapter 1- Here, we will share Assertion and Reason class 10 Chemistry Chapter 1 Chemical reaction and equations. If you are studying in Class 10 then this article is going to help you a lot. If you are searching for Assertion and Reason Class 10 Chemistry Chapter 1chemical reaction and equations. then you are in the right place.
Assertion and Reason Class 10 Chemistry Chapter 1
Assertion and Reason Class 10 Chemistry Chapter 1 chemical reaction and equations
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Assertion and Reason Class 10 Chemistry chemical reaction and equations
Assertion: When blue litmus paper is dipped into a solution and turns red, it indicates the presence of an acid.
Reason: Acids turn blue litmus paper red because they release hydrogen ions (H⁺) in aqueous solution.
Answer: Both the assertion and reason are correct, and the reason is the correct explanation for the assertion.
Assertion: Rusting of iron occurs more quickly in coastal areas than in dry inland areas.
Reason: Presence of moisture and salt in coastal air accelerates the oxidation process.
Answer: Both the assertion and reason are correct, and the reason is the correct explanation for the assertion.
Assertion: Decomposition of vegetable matter in a compost heap is a chemical change.
Reason: It results in the formation of new substances such as humus and carbon dioxide.
Answer: Both the assertion and reason are correct, and the reason is the correct explanation for the assertion.
Assertion: Zinc displaces copper from copper sulfate solution.
Reason: Zinc is more reactive than copper.
Answer: Both the assertion and reason are correct, but the reason is not the correct explanation for the assertion.
Assertion: Burning of magnesium ribbon in air is an example of combination reaction.
Reason: Magnesium combines with oxygen to form magnesium oxide.
Answer: Both the assertion and reason are correct, and the reason is the correct explanation for the assertion.
Assertion and reason class 10 chapter 1 science questions
Assertion: AgNO₃ + NaCl → AgCl + NaNO₃ is a double displacement reaction.
Reason: In double displacement reactions, the ions of reactants exchange to form new compounds.
Answer: Both the assertion and reason are correct, and the reason is the correct explanation for the assertion.
Assertion: Thermal decomposition of calcium carbonate is an endothermic reaction.
Reason: It absorbs heat to break down into calcium oxide and carbon dioxide.
Answer: Both the assertion and reason are correct, and the reason is the correct explanation for the assertion.
Assertion: Formation of bubbles when hydrogen peroxide decomposes into water and oxygen gas is a sign of chemical change.
Reason: New substances are formed during the decomposition reaction.
Answer: Both the assertion and reason are correct, and the reason is the correct explanation for the assertion.
Assertion: When magnesium is burnt in air, magnesium oxide is formed.
Reason: Magnesium undergoes oxidation to form magnesium oxide.
Answer: Both the assertion and reason are correct, and the reason is the correct explanation for the assertion.
Assertion: A chemical equation must always be balanced to satisfy the law of conservation of mass.
Reason: It ensures that the total mass of reactants equals the total mass of products.
Answer: Both the assertion and reason are correct, and the reason is the correct explanation for the assertion.
Assertion and reason class 10 chapter 1 science worksheet
Assertion: Formation of a precipitate when barium chloride solution is added to sodium sulfate solution indicates a chemical change.
Reason: A new insoluble substance (barium sulfate) is formed during the reaction.
Answer: Both the assertion and reason are correct, and the reason is the correct explanation for the assertion.
Assertion: Burning of a candle involves both physical and chemical changes.
Reason: The melting of wax is a physical change, while the combustion of wax is a chemical change.
Answer: Both the assertion and reason are correct, and the reason is the correct explanation for the assertion.
Assertion: Photosynthesis is an example of a chemical change.
Reason: Carbon dioxide and water react in the presence of sunlight and chlorophyll to form glucose and oxygen.
Answer: Both the assertion and reason are correct, and the reason is the correct explanation for the assertion.
Assertion: Corrosion of iron can be prevented by applying a coat of paint.
Reason: Paint acts as a barrier, preventing oxygen and water from coming into contact with iron.
Answer: Both the assertion and reason are correct, and the reason is the correct explanation for the assertion.
Assertion: Neutralization reaction between an acid and a base produces salt and water.
Reason: The reaction involves the combination of H⁺ ions from the acid and OH⁻ ions from the base to form water.
Answer: Both the assertion and reason are correct, and the reason is the correct explanation for the assertion.
Chemistry chapter 1 assertion and reason class 10 chemical reaction and equations
Assertion: Respiration is a chemical process that occurs in living organisms.
Reason: During respiration, glucose is oxidized to release energy in the form of ATP.
Answer: Both the assertion and reason are correct, and the reason is the correct explanation for the assertion.
Assertion: Formation of rust on iron is a spontaneous process.
Reason: It occurs in the presence of oxygen and water vapor without the need for external energy input.
Answer: Both the assertion and reason are correct, and the reason is the correct explanation for the assertion.
Assertion: Heating of copper sulfate pentahydrate crystals results in the formation of anhydrous copper sulfate.
Reason: Water molecules are driven off from the crystal lattice structure upon heating.
Answer: Both the assertion and reason are correct, and the reason is the correct explanation for the assertion.
Assertion: Electrolysis of water is a chemical change.
Reason: Water molecules dissociate into hydrogen and oxygen gases during electrolysis.
Answer: Both the assertion and reason are correct, and the reason is the correct explanation for the assertion.
Assertion: Decomposition of hydrogen peroxide solution in the presence of manganese dioxide is catalyzed by MnO₂.
Reason: Manganese dioxide provides an alternate pathway for the decomposition reaction, lowering its activation energy.
Answer: Both the assertion and reason are correct, and the reason is the correct explanation for the assertion.