0
Match the following.
a) Gypsum — i) CuSO
4
. 5H
2
O
b) Plaster of pans — ii) CaSO
4
. 2H
2
O
c) Hydrous copper sulphate — iii) CaSO
4
\(\frac{1}{2}\)
H
2
O
d) Anhydrous copper sulphate — iv) CuSO
4
A) a → i, b →ii, c → iii, d → iv
B) a → iv, b → iii, c → ii, d → i
C) a → ii, b → iii, c → i, d → iv
D) a → i, b → iii, c → ii, d → iv