The correct order of the packing efficiency in different types of unit cells is ________.
(i) fcc < bcc < simple cubic
(ii) fcc > bcc > simple cubic
(iii) fcc < bcc > simple cubic
(iv) bcc < fcc > simple cubic
The answer is the option (ii) The correct order of the packing efficiency in different types of unit cells is as: fcc (74%) > bcc (68%) > simple cubic (52%).
Fcc>bcc>simple cubic because the packing efficiency of CCP and FCC is 74% and the packing efficiency of bcc is 68% and the packing efficiency of simple cubic is 52.4 %