Acids, Bases and Salts Assertion and Reason Questions for Class 10
Acids, Bases and Salts Assertion and Reason Questions for Class 10 has been provided by JEE Wallah to help students score good marks in their CBSE and Competitive exams. Assertion and Reason Questions for Class 10 Science Chapter 2 Acids, Bases and Salts is very important as these questions are asked in the Board Exam. Acids, Bases and Salts Class 10 Assertion and Reason Questions will help you check whether you have grasped the conceptual learning or not.
Acids, Bases and Salts Assertion and Reason Questions for Class 10
Are you looking for Acids, Bases and Salts Assertion and Reason Questions for Class 10
so that you can focus on your study to better perform in the upcoming
CBSE Class 10 Board examination? If so, you are at the right place, our
subject experts have prepared Assertion and Reason Questions for Class 10 Science Chapter 2 Acids, Bases and Salts which will boost up your preparation
level.
Despite the fact that Assertion and Reason Questions on Acids Bases and Salts can be solved only by having proper conceptual
knowledge, we are giving you some tips that can help you solve
Assertion and Reasoning questions for Class 10 Science Acids Bases and Salts.
The tips are : Read the Question Carefully; Analyze the Assertion
statement; Analyze the Reason statement; Check if the Reason Statement
Explains the Assertion Statement.
Our last tip is : Practice Acids, Bases and Salts Assertion and Reason Questions for Class 10 with answers as much as possible.
Assertion and Reason Questions for Class 10 Science Chapter 2 Acids, Bases and Salts
1.
(A) - Lemon juice is sour in taste.
(R) - Lemon juice turns blue litmus to red.
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true and R is not the correct explanation of A.
(c) A is true but R is false.
(d) A is false but R is true.
Answer
(a) Both A and R are true and R is the correct explanation of A.
2.
(A) - Clove oil is an olfactory indicator.
(R) - Smell of clove can be used to detect whether a given chemical is a strong base or a weak base.
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true and R is not the correct explanation of A.
(c) A is true but R is false.
(d) A is false but R is true.
Answer
(c) A is true but R is false.
3.
(A) - Sodium hydroxide reacts with zinc to produce hydrogen gas.
(R) - Hydrogen gas is tested by bringing a burning candle near gas bubbles.
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true and R is not the correct explanation of A.
(c) A is true but R is false.
(d) A is false but R is true.
Answer
(b) Both A and R are true and R is not the correct explanation of A.
4.
(A) - Bases turns red litmus solution into blue litmus solution.
(R) - Bases give hydroxide ions in their aqueous solution.
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true and R is not the correct explanation of A.
(c) A is true but R is false.
(d) A is false but R is true.
Answer
(b) Both A and R are true and R is not the correct explanation of A.
5.
(A) - Sodium hydrogencarbonate is used in soda-acid fire extinguisher.
(R) - Sodium hydrogencarbonate is a weak base.
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true and R is not the correct explanation of A.
(c) A is true but R is false.
(d) A is false but R is true.
Answer
(b) Both A and R are true and R is not the correct explanation of A.
6.
(A) - If the pH the inside the mouth decreases below 5.5, it causes tooth decay.
(R) - The bacteria present in mouth degrades the sugar and left over food particles and produce acids that causes tooth decay.
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true and R is not the correct explanation of A.
(c) A is true but R is false.
(d) A is false but R is true.
Answer
(a) Both A and R are true and R is the correct explanation of A.
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7.
(A) - When electricity is passed through and aqueous solution of sodium chloride, it decomposes to form sodium hydroxide.
(R) - This process is known as chlor-alkali process.
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true and R is not the correct explanation of A.
(c) A is true but R is false.
(d) A is false but R is true.
Answer
(b) Both A and R are true and R is not the correct explanation of A.
8.
(A) - Phenolphthalein gives pink colour in basic solution.
(R) - Phenolphthalein is a natural acid-base indicator.
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true and R is not the correct explanation of A.
(c) A is true but R is false.
(d) A is false but R is true.
Answer
(c) A is true but R is false.
9.
(A) - The aqueous solution of glucose and alcohol do not show acidic nature.
(R) - Aqueous solution of glucose and alcohol do not give H+ ions.
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true and R is not the correct explanation of A.
(c) A is true but R is false.
(d) A is false but R is true.
Answer
(a) Both A and R are true and R is the correct explanation of A.
10.
(A) - Bleaching powder is used as an oxidising agent in chemical industries.
(R) - Bleaching powder is produced by the action of dry slaked lime.
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true and R is not the correct explanation of A.
(c) A is true but R is false.
(d) A is false but R is true.
Answer
(b) Both A and R are true and R is not the correct explanation of A.
11.
(A) - Sodium carbonate is an acidic salt.
(R) - Sodium carbonate is formed with weak acid and strong base.
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true and R is not the correct explanation of A.
(c) A is true but R is false.
(d) A is false but R is true.
Answer
(d) A is false but R is true.
12.
(A) - Plaster of Paris is used as a plaster for supporting factored bones.
(R) - Plaster of Paris is a white powder which changes to gypsum on mixing with water and once again giving a hard solid mass.
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true and R is not the correct explanation of A.
(c) A is true but R is false.
(d) A is false but R is true.
Answer
(a) Both A and R are true and R is the correct explanation of A.
13.
(A) - Hydrochloric acid produces hydronium ions and chloride ions in aqueous solution.
(R) - In presence of water, base gives H+ ions.
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true and R is not the correct explanation of A.
(c) A is true but R is false.
(d) A is false but R is true.
Answer
(c) A is true but R is false.
14.
(A) - Non metallic oxides react with bases to form salt and water.
(R) - Non metallic oxides are acidic in nature.
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true and R is not the correct explanation of A.
(c) A is true but R is false.
(d) A is false but R is true.
Answer
(a) Both A and R are true and R is the correct explanation of A.
15.
(A) - The process of dissolving an acid or a base in water is highly exothermic.
(R) - The acid must always be added slowly to the water with constant stirring.
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true and R is not the correct explanation of A.
(c) A is true but R is false.
(d) A is false but R is true.
Answer
(b) Both A and R are true and R is not the correct explanation of A.
16.
(A) - Hydrochloric acid is a strong acid.
(R) - Hydrochloric acid completely ionises in its aqueous solution.
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true and R is not the correct explanation of A.
(c) A is true but R is false.
(d) A is false but R is true.
Answer
(a) Both A and R are true and R is the correct explanation of A.
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17.
(A) - Weak acids have low electrical conductivity.
(R) - Strong acids and weak acids have equal concentration of hydrogen ions in their aqueous solution.
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true and R is not the correct explanation of A.
(c) A is true but R is false.
(d) A is false but R is true.
Answer
(c) A is true but R is false.
18.
(A) - To dilute concentrated nitric acid, water is added slowly to the acid.
(R) - In this process of dilution, a lot of heat energy will be released.
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true and R is not the correct explanation of A.
(c) A is true but R is false.
(d) A is false but R is true.
Answer
(d) A is false but R is true.
19.
(A) - Strength of an acid or a base decreases with dilution.
(R) - Ionisation of an acid or a base increases with dilution.
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true and R is not the correct explanation of A.
(c) A is true but R is false.
(d) A is false but R is true.
Answer
(b) Both A and R are true and R is not the correct explanation of A.
20.
(A) - The chemical name of bleaching powder is calcium oxychloride.
(R) - Bleaching powder is used for disinfecting drinking water to make it free of germs.
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true and R is not the correct explanation of A.
(c) A is true but R is false.
(d) A is false but R is true.
Answer
(b) Both A and R are true and R is not the correct explanation of A.
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