Question

UMUL IUIIeu !
of .......
29. Fill in the following blanks :
(a) Common salt is obtained from sea-water by the process of
(b) Rock salt is mined just like
(C) Chemical formula of washing soda is............
(d) Sodium hydrogencarbonate is...................soda whereas sodium carbonate is...
(e) The chemical formula of plaster of Paris is...
please answer all​

Answer 1

Answer:

a) evaporation.

b)Coal ( not sure)

c)Na2Co3

d) baking soda (also monoprotic)....... Sodium carbonate (Na2Co3..diprotic.)=washing soda

e)2CaSO4.H2O or CaSo4.1/2H2o