C\(_x\)H\(_y\)O + 5O\(_2\)  →  4CO\(_2\)  +  4H\(_2\)O

C\(_x\)H\(_y\)O in the equation is

Alkylation of benzene is catalyzed by 

Benzene formed nitrobenzene at temperature of 60\(^0\)C when it reacts with mixture of concentrated trioxonitrate(V) acid and concentrated 

The general molecular formula C\(_n\)H\(_{2n-2}\) represents that of an

What accounts for the low melting and boiling points of covalent molecules?