What fraction of one edge centred octahedral void lies in one unit cell of fcc?
 1 $$1 \over 12$$ 2 $$1 \over 2$$ 3 $$1 \over 3$$ 4 $$1 \over 4$$
Subtopic: Â Voids, Radius Ratio & Coordination Number |
From NCERT
NEET - 2023
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How many number of tetrahedral voids are formed in 5 mol of a compound having cubic close packed structure? (Choose the correct option)
 1 $$1.550 \times10^{24}$$ 2 $$3.011 \times10^{25}$$ 3 $$3.011 \times10^{24}$$ 4 $$6.022 \times10^{24}$$
Subtopic: Â Voids, Radius Ratio & Coordination Number |
From NCERT
NEET - 2023
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The number of tetrahedral and octahedral voids in hexagonal primitive unit cell are respectively:

1. 2, 1

2. 12, 6

3. 8, 4

4. 6, 12

Subtopic: Â Voids, Radius Ratio & Coordination Number |
Â 66%
From NCERT
NEET - 2021
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
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NEET 2025 - Target Batch

A compound is formed by cation C and anion A. The anions form hexagonal close packed (hcp) lattice and the cations occupy 75 % of octahedral voids. The formula of the compound is:

1. ${\mathrm{C}}_{3}{\mathrm{A}}_{4}$

2. ${\mathrm{C}}_{2}{\mathrm{A}}_{3}$

3. ${\mathrm{C}}_{3}{\mathrm{A}}_{2}$

4. ${\mathrm{C}}_{4}{\mathrm{A}}_{3}$

Subtopic: Â Voids, Radius Ratio & Coordination Number |
Â 51%
From NCERT
NEET - 2019
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
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To view explanation, please take trial in the course.
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