General Knowledge - General Science - Discussion


The most important ore of aluminium is

[A]. galena
[B]. calamine
[C]. calcite
[D]. bauxite

Answer: Option D


Bauxite is an aluminium ore and is the main source of aluminium.

Sriram said: (Nov 1, 2011)  
Abundantly available in India, mainly at orissa region.

Ram said: (Jan 4, 2012)  
Al2O3 is formulae

Tiana said: (Apr 26, 2014)  
What is ore?

Shristi said: (Apr 7, 2015)  
The chemical formula of Galena is PbS (plumbous sulphide), calamine is ZnCo3, calcite is CaCO3 and that of bauxite is Al2O3.2H2O.

Nitin said: (Jan 15, 2016)  
Ore: A naturally occurring solid material from which a metal or valuable mineral can be profitably extracted.

Rethabile said: (Mar 14, 2017)  
Why is it important?

Explain it clearly.

Lakshanya said: (Jun 16, 2017)  
Thank you @Shristi.

S.Vasanthi said: (Jul 24, 2017)  
It is the main source of aluminum.

Anushka said: (Apr 21, 2021)  
A) Galena also called lead glance, is the natural mineral form of lead sulfide. It is the most important ore of lead and an important source of silver.

B) Calamine is a historic name for an ore of zinc. The name calamine was derived from lapis calaminaris.

C) Calcite is a mineral consisting of calcium carbonate. It is a major constituent of sedimentary rocks such as limestone.

D) Bauxite is primarily comprised of aluminium oxide compounds (alumina), silica, iron oxides and titanium dioxide.

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