Question

The crystals fa compound A on keepingin air
get converted into white powder. Iss solution in
water gives blue colour with red litinus . It is used
to remove permanent hardness from water.
(a) identify the substance.write chemical formula for it's crystalline form.
(b) from the given information. identify the nature.
(c) write two more uses of the substance ​

Answer 1

Answer:

(a) The substance is washing soda. Its chemical formula is Na2CO310H2O.

(b) Since the awueous solution of the substance in water turns red litmus blue, it is of basic nature.

(c ) (i) It is used in laundry for washing clothes.

(ii) It is used in the manufacture of glass, paper and chemicals like caustic soda (NaOH), and borax (Na2B4O7) etc.

Step-by-step explanation: