Question no 26 i guess option B should be correct but answer key says option C as answer why ?
FCC has packing efficiency of 74% so 26% free space whereas BCC has packing efficiency of 68% so 32% free space. Thus FCC has lowest free space of all
Thank you for telling i noticed i have written wrong in my notes i had written empty space as 36% in Fcc instead of 26%
Question 36 i have a confusion as here we have to find out the type of crystal then how can i find edge length i cannot find edge with radius without knowing the type of crystal?
FCC structure has 4 atoms in one unit cell
8g=0.1mol of X =0.1×N_A total atoms of X
For 36 find density for FCC, BCC, And SCC
And compare Their density to the given one the one that is close to data ,is the structure .
So answer key is wrong na ?