19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
Crystals can be classified into basic crystal habits equal to
Bravais lattices are of
A particular solid is very hard and has a high melting point. In solid state, it is a non-conductor and its melt is a conductor of electricity. Classify the solid.
Which one of the following is a molecular crystal?
Glass is
The property of crystalline solid is not
Mostly crystals show good cleavage because their atoms, ions or molecules are
A crystalline solid
Crystalline solid is
Amorphous solids are
Amorphous substances show (1) Short and long range order (2) Short range order (3) Long range order (4) Have no sharp M.P.
Which of the following is a pseudo solid
Which of the following is non-crystalline solid
Which is not a property of solids
Which one of the following forms a molecular solid when solidified?
A given metal crystallises out with a cubic structure having edge length of 361 pm. If there are four metal atoms in one unit cell, What is the radius of one atom? (AIPMT 2015)
The vacant space in bcc lattice unit cell is (AIPMT 2015)
Copper crystallises in face centred cubic lattice with a unit cell length of 361 pm. What is the radius of copper atom in pm? (Manipal 2014)
The number of tetrahedral and octahedral voids in a CCP array of 100 atoms are respectively (Kerala CEE 2014)
Which of the following can be regarded as molecular solid? (EAMCET 2014)
If a is the length of the side of a cube, the distance between the body centered atom and one corner atom in the cube will be (AIPMT 2014)
The metal has a fcc lattice. The edge length of the unit cell is 404 pm. The density of the metal is 2.72 g/cm3. The molar mass of the metal is (NA =Avogadro's constant 6.02 10 mol ) x (NEET 2013)
A solid AB has NaCl structure. If the radius of cation A+ is 170 pm. Calculate the maximum possible radius of the anion B (WB JEE 2013)
Which of the following does not show electrical conduction in its physical state ? (CBSE AIPMT 2013)
The appearance of colour in solid alkali metal halides is generally due to [RPMT 2010]