NEET Chemistry The Solid State Questions Solved


Caculate the distance between 111 planes in a crystal of Ca. Repeat the calculation for the 222 planes. (a = 0.556nm)

(1) 016.1 nm

(2) 01.61 nm

(3) 0.610 nm

(4) None of the above

(2) We have, d=ah2+k2+2; d111=0.55612+12+12=0.321nm 

The separation of the 111 planes is twice as great as that of 222 planes.

Difficulty Level:

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