Question

For precipitate to be formed for reaction between barium chloride solution and sodium

sulphate solution,

(a) Equal volumes of the two solutions should be taken

(b) Barium chloride solution should be taken in excess

(c) Sodium sulphate should be taken in excess

(d) Any amounts of the two solutions may be mixed​

Answer 1

Answer:

option b is correct answer

Answer 2

Option (a) is the correct option

Explanation:

• For the precipitation reaction to occur when barium chloride and sodium sulphate solution are mixed , one must take equal volumes of two solutions.
• The precipitate formed is that of barium sulphate and sodium chloride is also formed but it remains in solution.
• Such a reaction is an example of a double displacement reaction , in which the ions precipitate and also the exchange of ions occurs.
• The reaction can be illustrated by :

        $BaCl_2 +Na_2SO_4 \rightarrow BaSO_4 + NaCl$