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

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Which of the following alloys contains $Al$,$Cu$,$Mg$,and $Mn$?

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A
Babbitt metal
B
Stainless steel
C
Spiegeleisen
D
Duralumin

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Class 12 Questions

Class 12

Chemistry Questions

Chapter

General Principles and Processes of Isolation of Elements

Subtopic

Occurrence

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All ores are minerals,but all minerals are not ores,because ....

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The region in which main metals are found in the Earth is called:

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What is the formula of calamine?

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Calamine,bauxite,malachite and siderite respectively are ores of .........

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Match List-$I$ with List-$II$:

List-$I$ List-$II$

$(a)$ Sphalerite $(i)$ $FeCO_3$

$(b)$ Calamine $(ii)$ $PbS$

$(c)$ Galena $(iii)$ $ZnCO_3$

$(d)$ Siderite $(iv)$ $ZnS$

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