Three compound X, Y and Z were taken into three different laboratory vessels annd they are carried out by a chemist in his car. The car caught fire due to short circuit and the chemist came out of the car and noticed following observations:
Q. Compound X changes into white substnace along with liberation of neutral oxide and then white substnace decomposed into three products among which two are acidic oxides. among these oxides non-polar oxide can undergo polar cyclic polymer on cooling. the compound X will be:

Options

A. `MgSO_(4)*7H_(2)O`
B. `ZnSO_(4)*7H_(2)O`
C. `CaSO_(4)*2H_(2)O`
D. `FeSO_(4)*7H_(2)O`

Answer

D

Explanation

`underset(("Green"))(FeSO_(4)*7H_(2)O) underset(-7H_(2)O)overset(Delta)to underset(("White from 2 moles"))(FeSO_(4)) overset(300^(@))to underset((Brown))(Fe_(2)O_(3))+underset((mu_(D)ne0))(SO_(2))uarr+underset((mu_(D)=0))(SO_(3))uarr`
`3SO_(3)(g) overset("cool")to underset((mu_(D)ne0))(S_(3)O_(9))`