CBSE 12th Standard Chemistry Subject General Principles and Processes of Isolation of Elements Ncert Exemplar 2 Mark Questions With Solution 2021
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CBSE 12th Standard Chemistry Subject General Principles and Processes of Isolation of Elements Ncert Exemplar 2 Mark Questions With Solution 2021
12th Standard CBSE
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Reg.No. :
Chemistry
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Which method is used for refining Zr and Ti? Explain with equation.
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Why is an external emf of more than 2.2 V required for the extraction of Cl2 from brine?
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At temperature above 1073 K coke can used to reduce FeO to Fe.How can you justify this reduction with Ellingham diagram?
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Wrought iron is the purest form of iron.Write a reaction used for the preparation of wrought iron from cast iron.How can impurities of sulphur,silicon and phosphorus be removed from cast iron?
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How is copper extracted from low grade copper ores?
(a)