MEDIUMMCQ SINGLENEET ChemistryInorganic ChemistryMetallurgyPrevious Year Questions
Identify the incorrect statement. (NEET Odisha 2015)
A.The scientific and technological process used for
B.Minerals are naturally occurring chemical substance
C.Ores are minerals that may contain a metal
D.Gangue is an ore contaminated with undesired✓ Correct
Explanation
The earthly impurities like sand, clay, mica, etc., associated with ores are called gangue or matrix. In other words, contaminated undesired materials present in an ore is called gangue. Thus, statement (d) is incorrect while other options contain correct statements.