Question

a)A sulphate salt of group 2 element of the periodic table is a white, soft substance
pe moulded into different shapes by making its dough. When this compound is left
ome time, it becomes a solid mass and cannot be used for moulding purpose. Ider
ulphate salt and explain why it shows such a behaviour? Give the reaction involve
a)State in tabular form the name of the acid and the base from which the followin
een formed. Also mention whether the salt is acidic, basic or neutral in nature.
) Ammonium chloride
i) Sodium acetate​

Answer 1

Answer:

A) THE SULPHATE SALT OF GROUP 2 ELEMENT OF THE PERIODIC TABLE IS  CALCIUM SUPLHATE

WHEN CALCIUM SULPHATE HEMIHYDRATE IS LEFT IN THE AIR FOR A PERIOD OF TIME IT FORMS A HARD SOLID MASS WHICH IS CALLED CALCIUM SULPHATE DI-HYDRATE

CaSO4.1/2H2O + 1 1/2H2O ---------------> CaSO4.2H2O

B)AMMONIUM CHLORIDE - AMMONIA + HYDROCHLORIC ACID

IT IS ACIDIC IN NATURE

II)SODIUM ACETATE - SODIUM HYDROXIDE + ACETIC ACID

IT IS BASIC IN NATURE

Explanation:

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