Chemistry-
General
Easy
Question
Assertion:Wolframite impurities are separated from cassiterite by electromagnetic separation.
- If both assertion and reason are true and the reason is the correct explanation of the assertion.
- If both assertion and reason are true but reason is not the correct explanation of the assertion.
- If assertion is true but reason is false.
- If the assertion and reason both are false.
The correct answer is: If both assertion and reason are true but reason is not the correct explanation of the assertion.
Both assertion and reason are true but reason is not the correct explanation of assertion.
Silver nitrate is called lunar caustic because when it comes in contact with organic substances (e.g. skin, clothes) and reduced to metallic silver which is white like the iron lunar.
.
Reason:Cassiterite being magnetic is attracted by the magnet and forms a separate heap.
Wolframite being magnetic is attracted by the magnetic roller and forms a heap under it.
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Reason:Addition of cryolite and fluorspar lowers the fusion temperature and increases the conductivity of the electrolyte.
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