Solid State (Chapter Test - Medical) - Class 12 MCQ
20 Questions MCQ Test - Solid State (Chapter Test - Medical)
Total volume of atoms present in a a face-centred cubic unit cell of a metal is (r is atomic radius)
The number of atoms in 100 g of a fcc crystal with density = 10.0 g/cm3 and cell edge equal to 200 pm is equal to
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A substance AxBy crystallises in a face centred cubic (fcc) lattice in which atoms ‘A’ occupy corner of the cube and atoms ‘B’ occupy the centres of each edge of the cube. Identify the correct composition of the subtance AxBy
Which of the following is a correct statement ?
AB crystallizes in a body centred cubic lattice with edge length ‘a’ equal to 387 pm. The distance between two
oppositely charged ions in the lattice is
If the positions of Na+ and Cl- are interchanged in NaCl, the crystal lattice with respect to Na+ and Cl- is
In crystalline solid AB2 has ccp arrangement of A atoms occupying the lattice points. Which of the following
statements is correct /
A solid has a bcc structure. If the distance of closest approach between the two atoms is 1.73Å. The edge length of the cell is
Crystals which are good conductors of electricity and heat are known as
The vacant space in body centred cubic (bcc) lattice unit cell is about
Sodium chloride, NaCl usually crystallizes in a face centred cubic lattice. How many ions are in contact with
any single Na+ ion ?
If a is the length of unit cell, then which one is correct relationship?
Which of the following statements is true for ionic solids?
The radius of a divalent cation M2+ is 94 pm and of divalent anion X2- is 146 pm.Thus, MX has
In a covalent solid , the structural units are
Which of the following statements is correct ?
I. The coordination number of cation occupying a tetrahedral hole is 4
II. The coordination number of cation occupying a octahedral hole is 6
III. In Schottky defects, density of the lattice decreases
Choose the correct matching sequence from the possibilities given
In the diffraction of X-rays by the set of a plane, in some cases the resultant intensity is zero, these are caused by absent reflections, what is the number absent reflection is divided?
X-ray studies show that the packing of atoms in a crystal of a metal is found to be in layers such that starting from any layer, every fourth layer is exactly identical. The density of the metal is found to be 19.4 g cm–2 and its atomic mass is 197 u.
Q.
The coordination number of metal atom in the crystal is
X-ray studies show that the packing of atoms in a crystal of a metal is found to be in layers such that starting from any layer, every fourth layer is exactly identical. The density of the metal is found to be 19.4 g cm–2 and its atomic mass is 197 u.
Q.
The length of the edge of the unit cell will be
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