66 gm sample of an oxalate salt `Al_(x)H_(y)(C_(2)O_(4))_(z).nH_(2)O` is dissolved in water to form 500mL solution. 50mL solution requires 60mL of 0.5M `Ba(OH)_(2)` and 240mL 0.1 M `KMnO_(4)` in acidic medium separately. If in salt x,y,z and n are present in simplest ratio, then select the correct statement(s).
A. Moles of oxalate salt in original sample is 0.2
B. Ratio of y/z is equal is 1
C. Value of (x+y+z)-n=5
D. Number of oxalate ion per molecule of oxalate salt is 2
