Rahul adds aqueos solution of barium chloride to an aqueous solution of sodium sulphate. He would observe that
a. a pungent smelling gas is evolved.
b. the colour of the solution turns red.
c. a yellow pricipitate is formed after some time.
d. a white pricipitate is formed almost immediately.
d.a white precipitate is formed .
this white precipitate is barium sulphate and it is insoluble in water.