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ICSE Class 7 Answered

please tell me the information and diffrences between acids,bases and salts.
Asked by kanav2001 | 11 Oct, 2017, 04:55: PM
answered-by-expert Expert Answer
 
 

 

Acid

Base

Arrhenius Definition

An acid produces protons.

A base produces hydroxyl ions.

Bronsted Lowry Definition

An acid is any substance which donates a proton.

A base is any substance which accepts a proton.

pH value

Less than 7.0

Greater than 7.0

Litmus paper

Blue litmus paper turns red

Red litmus paper turns blue

Phenolphthalein

Remains colorless

Changes colour of the solution from colourless to pink

Dissociation (in water)

Produces hydrogen ions (H+) when mixed with water.

Produces hydroxide ions (OH) when mixed with water.

Examples

HCl (Hydrochloric Acid). CH3COOH  (Acetic Acid or vinegar).

NaOH (Sodium Hydroxide).

Answered by Prachi Sawant | 11 Oct, 2017, 06:40: PM

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