(D) The correct definition of $Gangue$ is the earthy or undesired materials (such as sand,clay,or rocks) associated with the ore. Option $D$ is incorr

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Gangue is an ore contaminated with undesired materials.

(D) The correct definition of $Gangue$ is the earthy or undesired materials (such as sand,clay,or rocks) associated with the ore. Option $D$ is incorrect because $Gangue$ is not the ore itself,but the impurities present in the ore.

Class 12 Chemistry General Principles and Processes of Isolation of Elements Occurrence

Medium

Identify the incorrect statement.

NEET 2019 All NEET

A
The scientific and technological process used for isolation of the metal from its ore is known as metallurgy.
B
Minerals are naturally occurring chemical substances in the earth's crust.
C
Ores are minerals that may contain a metal.
D
Gangue is an ore contaminated with undesired materials.

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Chapter

General Principles and Processes of Isolation of Elements

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Occurrence

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The three most abundant elements in the Earth's crust are:

Medium

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Which of the following pairs of metal and its ore is correct?

Easy

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What different elements are found in baryte?

EasyMHT CET 2023

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Cryolite is

Easy

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Match the following minerals in List-$I$ with their chemical formulas in List-$II$.
List-$I$ List-$II$
$(A)$ Feldspar $(I)$ $[Ag_3SbS_3]$
$(B)$ Asbestos $(II)$ $Al_2O_3 \cdot H_2O$
$(C)$ Pyrargyrite $(III)$ $MgSO_4 \cdot H_2O$
$(D)$ Diaspore $(IV)$ $KAlSi_3O_8$
$(V)$ $CaMg_3(SiO_3)_4$

List-$I$	List-$II$
$(A)$ Feldspar	$(I)$ $[Ag_3SbS_3]$
$(B)$ Asbestos	$(II)$ $Al_2O_3 \cdot H_2O$
$(C)$ Pyrargyrite	$(III)$ $MgSO_4 \cdot H_2O$
$(D)$ Diaspore	$(IV)$ $KAlSi_3O_8$
	$(V)$ $CaMg_3(SiO_3)_4$

MediumAP EAMCET 2009

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