General Principles and Processes of Isolation of Elements

Bihar Board Class 12 · Chemistry · 35 past questions

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1. Q19 2021 Set A

   The formula of copper pyrite is

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2. Q20 2021 Set A

   Sulphide ores are concentrated by

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3. Q21 2021 Set A

   The metal always found in free state is

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4. Q22 2021 Set A

   Which of the following has magnesium ?

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5. Q23 2021 Set A

   Galena is an ore of

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