Question

In chromium (3) chloride crcl3 chlorine ions occupy

Answer 1

in this questoin cr and cl dissociates in cr3+ and cl- when we draw the diagrham we see that in a cubic close structure one cromium ion play blance role with the 3 chloride ion therfore,,
cr3+=1 cl-=1/3
therefore
in octahedral itwill be =n
and
in tertrahedral void it will be=2*n
total voids=n+2n=3n
fraction = n/3n=1/3

and therefore in ccp=1/3*1/3=1/9
therefore ratio will be 1/3:1/9

Answer 2

Answer:

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