If a crystal lattice has 6 closed-pack spheres, what the number of tetrahedral voids in the lattice?
12 correct as per chemistry principle.
Ref: NCERT Chemistry Class XII — The Solid State
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In primitive unit cubic cell, only _______ of an atom(or ion or molecule) belongs to a particular unit cell.
1/8th correct as per chemistry principle.
Ref: NCERT Chemistry Class XII — The Solid State
In a solid, oxide ions are arranged in CCP. 2/3 of the tetrahedral voids are occupied by M cations and 1/3 of the octahe
CCP O 4 tetrahedral 8×2/3 M octahedral 4×1/3 N M₄NO₃.
Ref: NCERT Chemistry Class XII — The Solid State
A compound of formula A₂B₃ has the hcp lattice. Which atom forms the hcp lattice and what fraction of tetrahedral voids
A₂B₃ hcp B forms hcp 6 atoms A 1/3 tetrahedral 2 atoms.
Ref: NCERT Chemistry Class XII — The Solid State
NaCl crystals appear yellow due to:
NaCl yellow F-centres anion vacancies trap electrons colour centres.
Ref: NCERT Chemistry Class XII — The Solid State
