Prabin Kalikote

Any three properties of salts are:
i. Salt are water soluble and insoluble both.
ii. Salts are amorphous and crystalline both.
iii. Salt are electrovalent compounds.

Salt is a chemical substance which is formed by partial or complete replacement of hydrogen ions of and acid by a metal or ammonium radical.
i. By direct combination of metal and non-metals.
ii. By the reaction of metals with acids.

The major uses of base are:
i. It is used to make soap, detergent, etc.
ii. It is used to make bleaching powder.
iii. It is used to remove grease and stain from clothes.
iv. It is used for softening hard water.
v. It is used for purification of sugar and production of cements.

The process of mixing base and acids together to lose their properties and neutralize the substance is meant by neutralization reaction.
Example: Hcl + NaOH ---------> Nacl + H₂O

Any two chemical properties of base wit chemical rxⁿ are:
i. Alkalis react with acid to form salt and water.
NaOH + Hcl --------> Nacl + H₂O
ii. Alkalis librate ammonia from ammonium salts.
NaOH + NH₄Cl ----------> Nacl + H₂O + NH₃

Any two physical properties of alkalis are:
i. They are soapy in touch and bitter in taste.
ii. Strong base or alkalis burn our skin.

We know, acids are acidic in nature but base are basic in nature. Acids contains hydrogen ions (H⁺) which stimulate the taste buds that detect sour taste. Bases contain (OH^-)ions which stimulate the taste buds that detects bitter taste. Therefore, acids are sour in taste but bases are bitter.