Class 10 Science Science

MCQ Class 10 Science Acids Bases and Salt with Answers

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CBSE Class 10 Science Chapter 2 Acid, Bases and Salt Multiple Choice Questions with Answers. MCQ Class 10 Science Acid, Bases and Salt with Answers was Prepared Based on Latest Exam Pattern. Students can solve NCERT Class 10 Science Acid, Bases and Salt MCQs with Answers to know their preparation level.

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Multiple Choice Questions - Set - 4

Question 1: 

Chemical formula of washing soda is
(a) Na2C03 . 7H2O
(b) Na2C03 . 5H2O
(c) Na2C03 . 2H2O
(d) Na2C03 . 10H2O

Correct Answer – (D)

Question 2 : 

Sodium hydroxide is used
(a) as an antacid
(b) in manufacture of soap
(c) as a cleansing agent
(d) in alkaline batteries

Correct Answer – (B)

Question 3 : 

An aqueous solution turns red litmus solution blue. Excess addition of which of the following solution would reverse the change?
(a) Baking powder
(b) Lime
(c) Ammonium hydroxide solution
(d) Hydrochloric acid

Correct Answer – (D)

Question 4 : 

Rain is called acid rain when its:
(a) pH falls below 7
(b) pH falls below 6
(c) pH falls below 5.6
(d) pH is above 7

Correct Answer – (C)

Question 5 : 

Tooth enamel is made up of
(a) calcium phosphate
(b) calcium carbonate
(c) calcium oxide
(d) potassium

Correct Answer – (A)

Question 6 : 

Sodium hydroxide turns phenolphthalein solution
(a) pink
(b) yellow
(c) colourless
(d) orange

Correct Answer – (A)

Question 7 : 

When copper oxide and dilute hydrochloric acid react, colour changes to
(a) white
(b) bluish-green
(c) blue-black
(d) black

Correct Answer – (B)
Reason: Blue-green colour of solution is due to the formation of copper (II) chloride.

Question 8 : 

Sodium hydroxide is a
(a) weak base
(b) weak acid
(c) strong base
(d) strong acid

Correct Answer – (C)
Reason: Sodium hydroxide ionises in water and produces a large amount of hydroxide ions.

Question 9 : 

What is the pH range of our body?
(a) 7.0 – 7.8
(b) 7.2 – 8.0
(c) 7.0 – 8.4
(d) 7.2 – 8.4

Correct Answer – (A)

Question 10 : 

Nettle sting is a natural source of which acid?
(a) MetiWanoic acid
(b) Lactic acid
(c) Citric acid
(d) Tartaric acid

Correct Answer – (A)
Set 1
Set 2
Set 3
Set 4
Set 5
Set 6


NCERT Solutions & Download NCERT Textbooks

Multiple Choice Questions – Chapter 1 – Chemical Reactions and Equation

Set 1
Set 2
Set 3
Set 4
Set 5
Set 6

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