The crystal with metal deficiency defect is
A metal has a fcc lattice. The edge length of the unit cell is 404 pm. The density of the metal is 2.72 g cm–3. The molar mass ofthe metal is (NA = Avogadro's constant = 6.02 × 1023 mol–1) |
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The ionic radii of Rb+ and I– are 1.46 Å and 2.16 Å respectively. The most probable type of structure exhibited by it is |
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The number of atoms per unit cell of bcc structure is |
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The number of hexagonal faces that are present in truncated octahedron is |
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In a face–centered cubic lattice, a unit cell is shared equally by how many unit cells? |
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A compound is formed by elements A and B. This crystallizes in the cubic structure where A atoms are at the corners of the cube and B atoms are at the body centres. The simplest formula of the compound is |
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The crystal system of a compound with unit cell dimensions, a = 0.387, b = 0.387 and c = 0.504 nm and α = β = 90° and γ = 120° is |
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The radius ratio in CsCl is 0.93. The expected lattice structure is |
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The unit cell of a binary alloy composed of A and B metals, has a ccp structure with A atoms occupying the corners and B atoms occupying the centres of each face of the cube. If during the crystallization of this alloy, in the unit cell, two A atoms are missing, the overall composition per unit cell is |
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Which of the following is a molecular crystal? |
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