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Dinesh khalmaniya 1 Best Answer
option D
here Cu at the face centr so 6×1/2 =3 while Au at corners so 8×1/8 =1
here 3 Cu and 1 Au combined to gormed 1 Cu3Au
if 6 Cu and 2 Au comes then ???what will be it's formula unit
2
because in one unit there is 3Cu and 1 Au
ok sir again if 7 Cu and 2 Au comes then?????it will be 1 na
no, only 6Cu and 2 Au formed 2 unit. it is not possible
ok sir got it thanku