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प्रश्न
Name the following:
The process in which an ore is heated in air so that oxygen gets added to it to form the oxides.
उत्तर
Roasting.
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संबंधित प्रश्न
Fill in the following blank with suitable word:
Bronze is an alloy of copper and .........
Name the gas evolved when cinnabar ore is roasted.
Calamine ore can be used to extract one of the following metals. This metal is:
(a) copper
(b) mercury
(c) aluminium
(d) zinc
Which metal can be extracted from the following ore?
Calamine
Give the principles of the froth floatation process.
Give reasons, why aluminum is used in:
making alloys
Define the term : Slag
Complete the incomplete statement with missing word:
Metals are malleable while non-metals are ______.
Name the following:
The process of heating an ore to a high temperature in the presence of air.
The given reaction shows one of the processes to extract the metals like Iron and Manganese.
\[\ce{MnO2(s) + Al(s) -> Mn(l) + Al2O3(s) + Heat}\]
Identify the substance oxidised and reduced in the above reaction.
