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Assertion (A) : Zn can be obtained by di...

Assertion (A) : Zn can be obtained by distillation method. Reason (R) : Zn is a low boiling metal.

A

'A' and 'R' are true and 'R' satisfies 'A'

B

'A' and 'R' are true but 'R' doesnot satisfy 'A’

C

'A' is true but 'R' is false

D

'A' and "R' are false

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Low-melting metal like tin can be purified by this method

VGS PUBLICATION-BRILLIANT-PRINCIPLES OF METALLURGY-EXERCISE
  1. P: Corrosion of iron is an oxidation process. Q : Corrosion occurs in...

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  2. Assertion (A) : Alloy metal does not undergo corrosion, Reason (R) : A...

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  3. Assertion (A) : Zn can be obtained by distillation method. Reason (R) ...

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  4. The product in the reduction of PbO with carbon is

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  5. What will happen if the displacement reaction takes place in between T...

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  6. What will happen if cinnabar heats ?

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  7. What will happen if a stainless steel rod placed in moisture air ?

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  8. There is metal oxide on a tool. The tool is made with

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  9. Two test tubes. 'A' and 'B' contains iron nails. In 'A' test tube iron...

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  10. Extract Na from NaCl, we obtain Na at

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  11. i) Bauxite (Al2O3 * 2H2O) ii) Copper iron pyrites (CuFeS2) iii) Gypsum...

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  12. Which of the following is not a mineral for iron metal ?

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  13. Which of the following undergoes an auto (self) reduction ? i) PbO i...

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  14. The process in which the ore is mixed with flux and fuel and strongly ...

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  15. Which of the following is not used to purification of a metal ?

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  16. Which of the following metal is low reactivity metal ?

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  17. Which of the following method is used for purification of Zinc ?

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  18. Name few highly reactive metals, which are never found in nature in fr...

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  19. Which of the following is the correct formula of gypsum?

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  20. Which of the following is not sulphide ore ?

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