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Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
Priyanshu kumar Best Answer
option A
https://doubtnut.com/question-answer-physics/a-solid-is-formed-and-it-has-three-types-of-atoms-x-y-and-z-x-forms-a-fcc-lattice-with-y-atoms-occup-14626567 check this video solution too for more detailed explanation