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Which one of the following metals occurs in nature in free state? |
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(a) |
Gold |
(b) |
Sodium |
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(c) |
Aluminium |
(d) |
Copper |
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Which one of the following metals occurs in nature in free state? |
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|
(a) |
Gold |
(b) |
Sodium |
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(c) |
Aluminium |
(d) |
Copper |
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