MEDIUM
VITEEE
IMPORTANT
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The addition of a CaCl2 crystal to a KCl crystal

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Important Questions on Solid State

MEDIUM
VITEEE
IMPORTANT
CaO and NaCl have the same crystal structure and nearly the same ionic radii. If x is the lattice energy of NaCl, the lattice energy of CaO is nearly
MEDIUM
VITEEE
IMPORTANT
If germanium crystallises in the same way as diamond, which of the following statements is not correct?
MEDIUM
VITEEE
IMPORTANT
Sodium metal crystallises in BCC lattice with cell edge, a=4.29 Å. What is the radius of the sodium atom?
HARD
VITEEE
IMPORTANT
A metallic element crystallises into a lattice containing a sequence of layers of ABABAB...... Any packing of spheres leaves out voids in the lattice. What percentage by volume of this space is empty space?
EASY
VITEEE
IMPORTANT
In a solid 'AB', having the NaCl structure, 'A' atoms occupy the corners of the cubic unit cell. If all the face-centred atoms along one of the axes are removed, the resultant stoichiometry of the solid is
HARD
VITEEE
IMPORTANT
Argon crystallizes in a structure in which the atoms are located at the positions (0, 0, 0), 0, 12, 12, 12, 0, 12 and 12, 12, 0. The unit cell is