Question

Four students were asked to study the reaction between barium chloride and sodium sulphate. They reported their experiment as follows. Which one is a correct report ?
(1) On mixing the powder of barium chloride and sodium sulphate, the colour of the mixture changes to brown.
(2) On adding powdered sodium sulphate to barium chloride solution; solution becomes white.
(3) On adding the powder of barium chloride and sodium sulphate solution; solution turns white.
(4) On mixing solution of barium chloride and sodium sulphate, white solid substance is formed

Answer 1

3 is correct option hope you got help

Answer 2

Correct option is : option 4

On mixing solution of barium chloride and sodium sulphate, white solid substance is formed

Explanation :

When barium chloride solution reacts with sodium suphate solution, we get insoluble precipitate barium sulphate and sodium chloride

BaCl2 (aq) + NaSO4 (aq) ----> BaSO4 ↓ + NaCl (aq)

This is a example of double displacement reaction