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Which one is the ore of copper ?...

Which one is the ore of copper ?

A

Bauxite

B

Dolomite

C

Haemattite

D

Chalcopyrite

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SHARAM PUBLICATION-2016 QUESTION PAPER-EXERCISE
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  9. What are the Monomers used for preparing Buna -N ?

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  10. Write the unit of cell constant.

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