The compound formed, when gypsum is dissolved in aqueous ammonium sulphate solution is,

Options

A. `CaSO(4).NH_(4)Cl.H_(2)O`
B. `CaCl_(2).(NH_(4))_(2)SO_(4).H_(2)O`
C. `CaSO_(4).(NH_(4))_(2)SO_(4).2H_(2)O`
D. `CaCl_(2).NH_(4)CI.2H_(2)O`

Answer

(c )

Explanation

When gypsum is dissolved in aqueous ammonium sulphate, the compound formed is, double salt,
`CaSO_(4).2H_(2)O + (NH_(4))_(2)SO_(4) rarr CaSO_(4).(NH_(4))_(2)SO_(4).2H_(2)O`