MCQ Class 10 Science Acids Bases and Salt with Answers

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.

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

Check Answer

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

Check Answer

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

Check Answer

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

Check Answer

Correct Answer – (C)

Question 5 :

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

Check Answer

Correct Answer – (A)

Question 6 :

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

Check Answer

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

Check Answer

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

Check Answer

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

Check Answer

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

Check Answer

Correct Answer – (A)

NCERT Solutions & Download NCERT Textbooks

Multiple Choice Questions – Chapter 1 – Chemical Reactions and Equation

Multiple Choice Questions - Set - 4

Correct Answer – (D)

Correct Answer – (B)

Correct Answer – (D)

Correct Answer – (C)

Correct Answer – (A)

Correct Answer – (A)

Correct Answer – (B)

Correct Answer – (C)

Correct Answer – (A)

Correct Answer – (A)

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