Double displacement reaction
A. Only (i)
B. Only (ii)
C. Only (ii)
D. (ii) and (iv)
Answer:D
Double displacement reaction
A. Only (i) B. Only (ii) C. Only (ii) D. (ii) and (iv)
Explanation: Double displacement reaction involves displacement of cation and anions of two different compounds. In given reaction, precipitate of barium sulphate is formed.