Hot metal at high temperature is allowed to cool slowly, producing a large grain size. This process is called: 

Materials that are able to return to their old shape after stretching are called:

Sodium ethanoate is :

The structure of methane is:

The oxidation state of Cr in Cr₂ O₇^2- is:

The bond formed due to sharing of electrons:

The electrostatic force of attraction between atoms is called:

The most stable arrangement of electrons is for :

An ionic crystal among the following is:

The element having lowest  melting point is: