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
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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