Corundum is :...

Corundum is :

A

`SrO_2`

B

`Al_2O_3`

C

`CaCl_2`

D

`Cu_2Cl_2`

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Verified by Experts

The correct Answer is:

B

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Extraction of metal from sulphide ore is made by :
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Which of the following processes involves the roasting process ?
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Corundum is :
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Which metal is sometimes found in native state ?
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Which elements found in human body :
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presence of small impurity usually makes a metal quite hard because th...
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The phenomenon in which white transparent crystal changes into white p...
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Which substance can be used for drying basic gases :
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The cheap and high melting point compound used in furnace lining is :
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Which element occurs freely in nature ?
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The lightest metal is :
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Which of the elements listed below shows allotropic forms?
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The most malleable metal is :
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Concentration of the ore is done :
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The purpose of smelting of an ore is :
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Calcination of an ore means :
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The metal used in storage batteries is :
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In blast furnace , the cup and cone arrangement is used :
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The process of heating the ore strongly in excess of air so that the v...
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Liquid crystals are best used in :
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