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Class 10 Exam  >  Class 10 Tests  >  Online MCQ Tests for Class 10  >  Important Questions (1 Mark): Acids, Bases & Salts - Class 10 MCQ

Important Questions (1 Mark): Acids, Bases & Salts - Class 10 MCQ


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10 Questions MCQ Test Online MCQ Tests for Class 10 - Important Questions (1 Mark): Acids, Bases & Salts

Important Questions (1 Mark): Acids, Bases & Salts for Class 10 2024 is part of Online MCQ Tests for Class 10 preparation. The Important Questions (1 Mark): Acids, Bases & Salts questions and answers have been prepared according to the Class 10 exam syllabus.The Important Questions (1 Mark): Acids, Bases & Salts MCQs are made for Class 10 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Important Questions (1 Mark): Acids, Bases & Salts below.
Solutions of Important Questions (1 Mark): Acids, Bases & Salts questions in English are available as part of our Online MCQ Tests for Class 10 for Class 10 & Important Questions (1 Mark): Acids, Bases & Salts solutions in Hindi for Online MCQ Tests for Class 10 course. Download more important topics, notes, lectures and mock test series for Class 10 Exam by signing up for free. Attempt Important Questions (1 Mark): Acids, Bases & Salts | 10 questions in 10 minutes | Mock test for Class 10 preparation | Free important questions MCQ to study Online MCQ Tests for Class 10 for Class 10 Exam | Download free PDF with solutions
Important Questions (1 Mark): Acids, Bases & Salts - Question 1
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An aqueous solution turns red litmus solution blue. Excess addition of which of the following solution would reverse the change ?

Detailed Solution for Important Questions (1 Mark): Acids, Bases & Salts - Question 1

As the solution turns red litmus solution blue, it must be basic. To reverse the change, we must add an acid.

Important Questions (1 Mark): Acids, Bases & Salts - Question 2
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NaOH is obtained by electrolysis of

Detailed Solution for Important Questions (1 Mark): Acids, Bases & Salts - Question 2

2NaCl + 2H2O → 2NaOH + H2 + Cl2
(Chlor-alkali process)

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Important Questions (1 Mark): Acids, Bases & Salts - Question 3
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One of the constituents of baking powder is sodium hydrogen carbonate, the other constituent is

Detailed Solution for Important Questions (1 Mark): Acids, Bases & Salts - Question 3

Tartaric acid is a leavening agent which is mixed with baking powder to neutralize the bitterness produced by baking powder. It is an important food additive that is being used today. When dry base powder is added to acid forming a solution, it is mixed with cream of tartar which is chemically known as potassium bitartrate. 

Important Questions (1 Mark): Acids, Bases & Salts - Question 4
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Lime water reacts with chlorine to form
Detailed Solution for Important Questions (1 Mark): Acids, Bases & Salts - Question 4

Ca(OH)2 + Cl2 → CaOCl2 + H2O 
(Manufacturing of bleaching powder)

Important Questions (1 Mark): Acids, Bases & Salts - Question 5
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A sample of soil is mixed with water and allowed to settle. The clear supernatant solution turns the pH paper yellowish-orange. Which of the following would change the colour of this pH paper to greenish-blue ?
Detailed Solution for Important Questions (1 Mark): Acids, Bases & Salts - Question 5

Only a basic solution will change the colour of pH paper to greenish-blue.

and out of all these, only antacid is a base.

lemon juice and vinegar are acid

common salt is neutral 

Important Questions (1 Mark): Acids, Bases & Salts - Question 6
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Ag2S reacts with H2SO4 to form
Detailed Solution for Important Questions (1 Mark): Acids, Bases & Salts - Question 6

Ag2S + H2SO4 → Ag2SO4 + H2S  (Double displacement reaction)

Important Questions (1 Mark): Acids, Bases & Salts - Question 7
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Which of the following statements are true for acids ?
Detailed Solution for Important Questions (1 Mark): Acids, Bases & Salts - Question 7

Acids possess sour taste and turn blue litmus paper red.

Important Questions (1 Mark): Acids, Bases & Salts - Question 8
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pH of H2O is
Detailed Solution for Important Questions (1 Mark): Acids, Bases & Salts - Question 8

pH of H2O is 7 because it is neutral. It is formed by neutralization reaction.

Important Questions (1 Mark): Acids, Bases & Salts - Question 9
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Which of the following are present in a dilute aqueous solution of hydrochloric acid ?
Detailed Solution for Important Questions (1 Mark): Acids, Bases & Salts - Question 9

Hydrochloric acid ionises as follows :
HCl→ H+ +Cl- 
H+ ions combine with water molecules to form H3O+. Therefore, the ions present in dilute aqueous solution of hydrochloric acid are H3O+ and Cl-.

Important Questions (1 Mark): Acids, Bases & Salts - Question 10
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NaHCO3 is formed by the reaction of
Detailed Solution for Important Questions (1 Mark): Acids, Bases & Salts - Question 10

H2CO3 + NaOH → NaHCO3 + H2O

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