Chemistry Question Bank

Which one of the following is a molecular crystal?

Mostly crystals show good cleavage because their atoms, ions or molecules are

Among solids the highest melting point is established by

Which of the following is a molecular crystal

Solid CO2 is an example of

In graphite, carbon atoms are joined together due to

Particles of quartz are packed by

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 is not a property of solids

Amorphous solids are

Which of the following is non-crystalline solid

Which of the following is a pseudo solid

Amorphous substances show (1) Short and long range order (2) Short range order (3) Long range order (4) Have no sharp M.P.

Bravais lattices are of

The number of atoms per unit cell in primitive (sc), body-centered (bcc), face-centered (fcc) and end- centered (ecc) unit cell decreases as

Crystalline solid is

A crystalline solid

In a face-centred cubic lattice, a unit cell is shared equally by how many unit cells

Number of atoms in the unit cell of Na (bcc type crystal) and Mg (fcc type crystal) are, respectively

A metal crystallises into a lattice containing a sequence of layer as AB ABAB....... . What percentage of voids are left in the lattice?

In a cubic lattice of ABC, A atoms are present at all corners except one corner which is occupied by B atoms. C atoms are present at face centers. The formula of the compound is

Copper crystallises in face centred cubic lattice with a edge length of 361pm. What is the radius of copper atom in pm?

A metal crystallizes in a face-centered unit cell. Its edge length is 0.410 nm. The radius of the metal is

For a solid with the following structure, the co- ordination number of the point B is

The ratio of cationic radius to anionic radius in an ionic crystal is greater than 0.732. Its coordination number is