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AB has NaCl type structure. If edge length of crystal lattice is 141. The radius of A+(approx)

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Important Questions on Solid State

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A metallic element has a cubic lattice. Each edge of the unit cell is2A°'. The density of the metal is 2.5g cm-3. The unit cell in 200g of the metal are
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What is the number of atoms in end centered unit cell?

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Which of the following is an example for orthorhombic crystal?
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In a face centered cubic lattice atoms A are at the corner points and atoms B at the face centered points. If atom B is missing from one of the face centered points, the formula of the ionic compound is :
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Which type of crystal system has axial angles α=β=γ=90° ?
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Polonium (atomic mass =209) crystallises in a simple cubic structure with a density of 9.32 g cm-3. Its lattice parameter (in pm) is closest to
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Which of the following pairs have layer lattice structure in solid-state chemistry
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NaCl is a FCC lattice where Na+ ions are at corner and face centre positions. Chloride ions are at edge centres and body centre positions. How many NaCl formula units will be in an unit cell
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The correct option for the number of body centred unit cells in all 14 types of Bravais lattice unit cells is:
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Which of the following lattices has the highest packing efficiency? (assuming that atoms are touching each other).
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An element occurring in the BCC structure has 12.05×1023 unit cells. The total number of atoms of the element in these cells will be
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Atoms of an element A form an fcc lattice, while those of element B occupy half of the octahedral holes. The chemical formula for the compound formed by the elements A and B is
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How many Bravais lattices are possible in a crystal?
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For a body-centered cubic structure with unit cell edge length of $a$, the radius of the sphere of each atom is
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(a) Aluminium crystallizes in a cubic close-packed structure. Its metallic radius is 125 pm. What is the length of the side of the unit cell?

(b) Why is potassium chloride sometimes violet instead of pure white?

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What fraction of one edge centred octahedral void lies in one unit cell of fcc?
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The FCC-crystal contains how many atoms in each unit cell?
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If the angle of incidence of X-ray of wavelength 3 Å which produces a second order diffracted beam from the 100 planes in a simple cubic lattice with interlayer spacing a=6  is 30o, the angle of incidence that produces a first - order diffracted beam from the 200 planes is
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The cubic unit cell structure of a compound containing cation M and anion X is shown below. When compared to the anion, the cation has smaller ionic radius. Choose the correct statement(s).

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