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Choose and write the correct answer of t...

Choose and write the correct answer of the following:
Which one is the ore of copper?

A

Bauxite

B

Dolomite

C

Haematite

D

Chalcopyrite

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    A
    Octahedral
    B
    Distorted octahedral
    C
    Square pyramidal
    D
    Trigonal pyramidal
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    A
    `NaNO_3`
    B
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    C
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    D
    `MgCl_2`
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    A
    He
    B
    Ne
    C
    Ar
    D
    Kr
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