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You are given 6 identical balls. What is the maximum number of square voids and triangular voids (in separate arrangements) that can be created?

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Important Questions on Solid State

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Alpha Question Bank for Engineering: Chemistry>Chapter 7 - Solid State>Exercise-2>Q 6
In a simple cubic lattice of anions, the side length of the unit cell is 2.88 A°. The diameter of the void in the body centre is:
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Alpha Question Bank for Engineering: Chemistry>Chapter 7 - Solid State>Exercise-2>Q 7
In a multi layered close-packed structure
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Alpha Question Bank for Engineering: Chemistry>Chapter 7 - Solid State>Exercise-2>Q 8
In a compound, oxide ions are arranged in cubic close packing arrangement. Cations A occupy one-sixth of the tetrahedral voids and cations B occupy one-third of the octahedral voids. The formula of the compound is:
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Alpha Question Bank for Engineering: Chemistry>Chapter 7 - Solid State>Exercise-2>Q 9
Platinum crystallises in a face-centred cubic crystal with a unit cell length 'a'. The distance between nearest neighbours is:
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Alpha Question Bank for Engineering: Chemistry>Chapter 7 - Solid State>Exercise-2>Q 10
Platinum crystallises in a face centered cube crystal with a unit cell length of 3.9231 A°. The density and atomic radius of platinum are respectively. [Atomic mass of Pt=195]
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Alpha Question Bank for Engineering: Chemistry>Chapter 7 - Solid State>Exercise-2>Q 11
Metallic gold crystallises in face centered cubic lattice with edge-length 4.070 A°. The closest distance between gold atoms is:
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Alpha Question Bank for Engineering: Chemistry>Chapter 7 - Solid State>Exercise-2>Q 12

Which of the following statements is correct in the rock-salt structure of an ionic compound?

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Alpha Question Bank for Engineering: Chemistry>Chapter 7 - Solid State>Exercise-2>Q 13
The compound AB crystallizes in a cubic lattice in which both A and B atoms have coordination numbers of 8. To what crystal class does the unit cell belong?