Question

44
The salts having the same positive
ions or same negative ions are said to
be......
(1 Point)
*
family of salts
acidic, basic and neutral salts
hydrous and anhydrous salts
all of these​

Answer 1

Answer:

A salt is a compound formed from an acid by the replacement of the hydrogen in the acid by a metal.

Example: Sodium chloride - NaCl; It is obtained from hydrochloric acid and sodium metal.

(b) The salts having the same positive ions are said to belong to a family of salts.

Example: Sodium chloride and sodium sulphate belong to the same family of salts called sodium salts.

(c) The salts which contain water of crystallisation are called hydrated

Example: Copper sulphate crystals contain 5 molecules of water of crystallisation. The salts which have lost their water of crystallisation are called anhydrous salts.

Example: On strong heating, copper sulphate crystals lose all the water of crystallisation and form anhydrous copper sulphate.

(d) Copper sulphate pentahydrate salt – Its chemical formula is CuSO

4

.5H

2

O. It is blue in colour.

Iron sulphate heptahydrate salt – Its chemical formula is FeSO

4

.7H

2

O. It is green in colour.

(e) The aqueous solution of ammonium chloride salt turns blue litmus red as it is made of strong acid and weak base.