wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

STATEMENT-1: An important feature of Fluorite structures is that cations being large in size occupy FCC lattice points whereas anions occupy all the tetrahedral voids giving the formula unit AB2 (A: cation, B: anion).
STATEMENT-2: There are 6 cations and 12 anions per FCC unit cell of the Fluorite structure.

A
Statement-1 is True,Statement - 2 is True; Statement-2 is a correct explanation for Statement-1.
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
Statement-1 is True,Statement-2 is True; Statement-2 is NOT a correct explanation for Statement-1
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
Statement-1 is True,Statement-2 is False
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
D
Statement-1 is False,Statement-2 is True
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is B Statement-1 is True,Statement-2 is False
Cations occupy FCC lattice in fluorite (CaF2) structure and anions occupy all the tetrahedral voids.

No. of cation per unit cell =8×18+6×12=4
No. of anion per unit cell =8 (No. of Tetrahedral voids)
=8
Statement-1 is True,Statement-2 is False. Option C is correct.

flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Examples of Ionic Compounds
CHEMISTRY
Watch in App
Join BYJU'S Learning Program
CrossIcon