Solid State Tes...

Which of the following is an example of metallic crystal solid?

When radius of central atom is double with respect to corner atoms, then find out % packing efficiency.

In a crystal, the atoms are located at the position of

A match box exhibits _____ geometry.

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

$$f-centre$$ is

Which of the following statements about the interstitial compounds is incorrect? 

Edge length of a cube is $$300\ pm$$. Its body diagonal would be

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

There are three cubic unit cells $$A, B$$ and $$C$$. $$A$$ is FCC and all of its tetrahedral voids are also occupied. $$B$$ is also FCC and all of its octahedral voids are also occupied. $$C$$ is simple cubic and all of its cubic voids are also occupied. If voids in all unit cells are occupied by the spheres exactly at their limiting radius, then the order of packing efficiency would be