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2X+B2H6 rarr [BH2(X)2]^+ [BH4]^- The a...

`2X+B_2H_6 rarr [BH_2(X)_2]^+ [BH_4]^-`
The amine(s) X is/are

A

Copper

B

Iron

C

Gold

D

Zinc

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MODERN PUBLICATION-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS-EXERCISE
  1. Which alloy is used to make arms and equipments of machines?

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  2. Which of the following is used in paints?

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  3. 2X+B2H6 rarr [BH2(X)2]^+ [BH4]^- The amine(s) X is/are

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  4. Which of the following reaction is an example of calcination process?

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  5. Fill in the blanks- Methane gas is also known as

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  6. Principle of paper chromatography is based on

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  7. Magnetic separation method is basically used for-

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  8. Give two uses of methane gas?

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  9. is a mixture of solution of copper sulphate and lime which is used as ...

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  10. Heating mixture of Cu2O and Cu2S will give :

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  11. In view of the sign of Deltar G^@ for the following reactions : PbO2 +...

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  12. State whether the statement is true or false- Baking powder is used to...

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  13. In the context of the Hall-Heroult process for the extraction of Al, ...

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  14. Which one of the following ore is best concentrated by froth floatatio...

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  15. Delta G^@ vs T plot in the Ellingham's diagram slopes downward for the...

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  16. Identify the reaction that does not take place in a blast furnace :

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  17. If C and D are two events such that CsubD""a n d""P(D)!=0 , then the c...

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  18. In aluminothermic process, Al is used as

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  19. State the role of silica in the metallurgy of copper.

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  20. In the electrolytic refining of zinc, ............

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