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MODERN PUBLICATION-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS-EXERCISE
- Copper is extracted from copper pyrites by roasting the ore partially ...
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- Write chemical reactions taking place in the extraction of zinc from z...
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- List important uses of copper .
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- Write down the reactions taking place in different zones in the blast ...
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- Outline the principles involved in the following methods of refining o...
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- Why is the extraction of copper from pyrites more difficult than that ...
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- “Metals are usually not found as nitrates in their ores”. Out of the f...
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- Match items of Column I with the items of Column II and assign the cor...
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- Which alloy is used to make arms and equipments of machines?
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- Which of the following is used in paints?
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- 2X+B2H6 rarr [BH2(X)2]^+ [BH4]^- The amine(s) X is/are
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- Which of the following reaction is an example of calcination process?
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- Fill in the blanks- Methane gas is also known as
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- Principle of paper chromatography is based on
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- Magnetic separation method is basically used for-
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- Give two uses of methane gas?
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- is a mixture of solution of copper sulphate and lime which is used as ...
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- Heating mixture of Cu2O and Cu2S will give :
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- In view of the sign of Deltar G^@ for the following reactions : PbO2 +...
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- State whether the statement is true or false- Baking powder is used to...
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