The mass of a unit cell of CsCl corresponds to:-
(a)8Cs+ and Cl-
(b)1Cs+ and 6Cl-
(c)1Cs+ and 1Cl-
(d)4Cs+ and Cl-
(c) A unit cell of CsCl having bcc structure consists of 8 atoms at the corner and one atom at centre.
Thus, no. of Cl- = 8x1/8 =1 and no. of Cs+ =1x1=1
Thus, no. of CsCl unit per unit cell = 1