19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
The number of atoms or molecules contained in one body centered cubic unit cell is
The number of atoms contained (i) in one body centred cubic unit cell and (ii) in one face centred cubic unit cell, is
Which kind of defect is shown by the given crystal?
A compound contains two types of atoms X and Y. It crystallises in a cubic lattice with atoms X at the corners of the unit cell and atoms Y at the body centre. The simplest possible formula of this compound is
Tetragonal crystal system has the following unit cell dimensions
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
Which one of the following forms a molecular solid when solidified?
Given, Column A Column B A. Ionic solid I. NaCl B. Metallic solid II. Fe C. Covalent solid III. C(graphite) D. Molecular solid IV. Dry ice
NaCl is an example of
Which of the following is an example of ionic crystal solid
Which of the following is an example of metallic crystal solid
Diamond is an example of
Which of the following is an example of covalent crystal solid
Particles of quartz are packed by
In graphite, carbon atoms are joined together due to
Solid CO2 is an example of
Which of the following is a molecular crystal
Among solids the highest melting point is established by
Right option for the number of tetrahedral and octahedral voids in hexagonal primitive unit cell are [NEET 2021]
Mostly crystals show good cleavage because their atoms, ions or molecules are