Question

define base and acid with their properties and examples​

Answer 1

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An acid is a substance that donates protons (in the Brønsted-Lowry definition) or accepts a pair of valence electrons to form a bond (in the Lewis definition). A base is a substance that can accept protons or donate a pair of valence electrons to form a bond. Bases can be thought of as the chemical opposite of acids.♡

Answer 2

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1) Properties -:

ACIDS

Acids are corrosive in nature.

They are good conductors of electricity.

Their pH values are always less than 7.

When reacted with metals, these substances produce hydrogen gas.

Acids are sour-tasting substances.

Examples: Sulfuric acid [H2SO4], Hydrochloric acid [HCl], Acetic acid [CH3COOH].

BASES

They are found to have a soapy texture when touched.

These substances release hydroxide ions (OH– ions) when dissolved in water.

In their aqueous solutions, bases act as good conductors of electricity.

The pH values corresponding to bases are always greater than 7.

Bases are bitter-tasting substances which have the ability to turn red litmus paper blue.

Examples: Sodium hydroxide [NaOH], milk of magnesia [Mg(OH)2], calcium hydroxide [Ca(OH)2].

2) Definition -

ACID

Acids are chemical agents that release hydrogen ions when added to water.

BASE

A base is a substance that can neutralize the acid by reacting with hydrogen ions. Most bases are minerals that react with acids to form water and salts.

3) Examples -

ACID

sulfuric, nitric, hydrochloric, and phosphoric acids

BASE

hydroxides of the alkali , alkaline earth metals