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- Noble gas belong to group
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- Which among the following are periodic properties ?
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- The process of extracting the ore from the earth's crust is .
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- Slag is
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- Metals are
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- The chemical formula of sodium meta aluminate is .
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- The chief ore of copper is
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- Blister copper contains
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- The chemical symbol of Iron is
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- The carbon content is wrought iron is
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