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Q.

Select the correct statement.

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a

Highly pure metals can be obtained by zone refining.

b

Aluminium is the most abundant metal in the earth's crust.

c

Reactive metals occur in native state.

d

The process of calcination and roasting is carried out in reverberatory furnace.

answer is A.

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Detailed Solution

Correct (3) Reactive metals occur in the combined state innature.
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