Chemical Process
A mineral is termed as 'ore', if

The metal present in it is costly
All of these
A metal can be economically extracted from it
It contains ≥ 40% metal

ANSWER DOWNLOAD EXAMIANS APP

Chemical Process
Shaving soaps are

Metalic soaps compounded with frothing agents
High free alkali soaps having excess of cane sugar and alcohol
Soft potassium soaps (potassium salt of fatty acid) with free stearic acid to give lather a lasting property
None of these

ANSWER DOWNLOAD EXAMIANS APP