Question

DOUBLE DISPLACEMENT REACTION
Smitha demonstrates a double displacement reaction in her class by mixing two aqueous solution. On mixing the two solution, insoluble Barium sulphate is formed


Question:4 )  Choose the correct equation for the reaction:

A)    BaSO4 + NaSO4  -->  BaSO4 + NaClB)    BaCl2 + NaSO4   --> BaSO4 + NaClC)    Ba + NaSO4  -->  BaSO4 + NaD)    BaCl2 + Na   --> Ba + NaCl

​

Answer 1

Answer:

When sodium sulphate reacts with barium chloride solution, barium sulphate which is an insoluble product (i.e., precipitate) and sodium chloride are formed.

Na

2

SO

4

(aq)+BaCl

2

(aq)→

(insoluble)

BaSO

4

(s)

↓+2NaCl(aq)

Here, exchange of ions takes place.

Hence, option D is correct.