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Match the items of column I with items o...

Match the items of column I with items of column II and assign the correct code.
`{:(ColumnI,ColumnII),((A)"Pendulum",(1)"Chrome steel"),((B)"Malachite",(2)"Nickel steel"),((C)"Calamine",(3)Na_(3)AlF_(6)),((D)"Cryolite,(4)CuCO_(3).Cu(OH)_(2)),(,(5)ZnCO_(3)):}`

A

A (1) B (2) C (3) D (4)

B

A (2) B (4) C (5) D (3)

C

A (2) B (3) C (4) D (5)

D

A (4) B (5) C (3) D (2)

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ALLEN-METALLURGY-EXERCISE -04
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  8. Give two requirements for vapour phase refining.

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  10. Match the items of column I with items of column II and assign the cor...

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  11. Match the items of Column I with the items of Column II and assign the...

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  12. Match items of Column I with the items of Column II and assign the co...

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  13. Match the items of Column I with the items of Column II and assign t...

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  14. Match the items of Column I with items of Column II and assign the cor...

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  15. Assertion (A) Nickel can be purified by Mond's process. Reason ( R) ...

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  16. Assertion (A) Zirconium can be purified by van Arkel method. Reason...

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  17. Assertion (A) Sulphide ores are concentrated by froth floatation metho...

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  18. Assertion (A) Zone refining method is verty useful for producing semic...

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