-------theory the reactant molecules get adsorbed on the surface of the finely divided catalyst.

(a)  

The compound formed by combination of metal ion with ligand are called as (a)  

--------of an element is defined as its tendency to lose one or more electrons form a cation.

(a)  

The distance from the center of the nucleus to the valence shell of electron in an atom and ion is called as (a)  

The element lying between s & p block element the periodic table are collectively known as (a)  

All ores are minerals but all (a)   are not ores

Those mineral from which metal can be extracted economically & conveniently is called-----------

(a)  

Substances which are repelled by magnetic field are termed as------------

(a)  

Transition element may be defined as element or ion have partly filled ------------

(a)