Published by:
CGP EDU Academic Team
Published on: August 14, 2026
In hexagonal close packing second row of spheres are placed in depressions of first row whereas third row is vertically aligned with first, 2nd with fourth forming a pattern AB. AB..... The number of nearest atoms is called the coordination number. It has six fold axis of symmetry.
(i) What is the coordination number of a central sphere in hcp
A
8 Tetrahedral void 8 hcp & hcp
B
12 Octahedral void 4 fcc both fcc
C
6 Trigonal void 6 bcc
D
4 (ii) If 
lies between 0.225 to 0.414, cation occupies. Cubic void (iii) The coordination number of octahedral void is 3 (iv) Which of the following packing are most efficient bcc (v) ABC.ABC ........ is called. simple cubic
lies between 0.225 to 0.414, cation occupies. Cubic void (iii) The coordination number of octahedral void is 3 (iv) Which of the following packing are most efficient bcc (v) ABC.ABC ........ is called. simple cubic
Text Solution
Verified by ExpertsThe correct answer is:
12
(i)
Sol. 12
(ii)
Sol. tetrahedral void
(iii)
Sol. 6
(iv)
Sol. & both
(v)
Sol. fcc
Prepare Smarter with CGP Edu
Get practice questions, solutions, and test series in one place.
Write a Review
Share your experience with this question and solution.
Commentary
Send your comment, doubt, correction, or feedback to admin.
Similar Questions
Explore conceptually related problems