NCERT Science

Book: NCERT Science

Chapter: 5. Acids, Bases and Salts

Subject: Chemistry - Class 7th

Q. No. 1 of Exercise

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State differences between acids and bases.

Differences between acids and bases are as follows:



Acids turn blue litmus to red.

Bases turn red litmus to blue.

Acids are sour in taste.

Bases are bitter in taste.

Chemical nature of such substances is acidic.

The nature bases of such substances is said to be basic.

They are not soapy to touch.

They are soapy to touch.

Example: Hydrochloric acid, acetic acid.

Example: Soaps at our homes, Sodium Hydroxide.


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