Question

if alloys can be made by mixing metal and non metal. Than we can term salt as an alloy?

Answer 1

The most basic classification of alloys is that they are mixtures.
The answer to your question lies in the basic definition of mixtures- 'A mixture is a substance made by combining two or more different materials in such a way that no chemical reaction occurs'. The defining property of mixtures is that all the constituents show their own properties even in mixture. 

hope it helps

Answer 2

No, the statemet is incoorct beacuae
Alloys are the homogeneous mixture of metals and non-metals and can be mixed simply in the molten form while
Salts are mixtures formed when hydrogen is placed from acid by a metal.