Question

If a' forms ccp lattice and b occupies 20% of octahedral voids, then the formula of compound is choose answer: ab ab2 a5b a3b

Answer 1

a-->n

tetrahedral void of a =n

octahedral void of b= 20/100×n=n/5

so ratio =

n/5:n=1:5=a5b

so answer c is correct