19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
In hcp arrangement, the number of nearest neighbours are
Glass is
Copper crystallises in fcc lattice with a unit cell edge of 361 pm. The radius of copper atom is
The unit cell of a binary alloy composed of A and B metals, has ccp. Structure with A atoms occupying the corners and B atoms occupying centres of each face of the cube. If during the crystallisation of this alloy, in…
Which of the following is an example of covalent crystal solid
Diamond is an example of
Which of the following is an example of metallic crystal solid
Which of the following is an example of ionic crystal solid
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
The two dimensional coordination number of a molecule in square close packed layer is
In a compound, atoms of element Y form ccp lattice and those of element X occupy 2/3rd of tetrahedral voids. The formula of the compound will be
NaCl is an example of
A crystalline solid
Mostly crystals show good cleavage because their atoms, ions or molecules are
Crystalline solid is
Among solids the highest melting point is established by
In a solid ‘AB’ having the NaCl structure, ‘A’ atoms occupy the corners and face centres of the cubic unit cell but all the face-centred atoms along one of the axes are removed and ‘B’ atoms occupy octahedral voids, t…
Which of the following is a molecular crystal
Which of the following is non-crystalline solid
Which is not a property of solids
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.
Amorphous solids are
Solid CO2 is an example of
In graphite, carbon atoms are joined together due to