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What happens when 28% of copper, 2% of i...

What happens when 28% of copper, 2% of iron and 70% of nickel combine together?

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MODERN PUBLICATION-d-AND f- BLOCK ELEMENTS-EXERCISE
  1. Fill in the blanks : MnO2 on heating with potassium hydroxide in the p...

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  2. Fill in the blanks : Chromite is ...........

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  3. What happens when 28% of copper, 2% of iron and 70% of nickel combine ...

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  4. What happens when 60% of copper and 40% of nickel combine together?

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  5. The oxidation state of chromium in dichromate ion (Cr2O7^(2-)) and chr...

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  6. What is the oxidation state of Mn is manganate ion.

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  7. What is the oxidation state of Cr in CrO5.

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  8. Calculate equivalent weight of KMnO4 in acidic medium.

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  9. Calculate equivalent weight of KMnO4 in alkaline medium.

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  10. Complete the chemical reaction : MnO4^(-)+ SO2+ H^(+) rarr

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  11. Complete the chemical reaction : S2O3^(2-)+ Cr2O7^(2-)+ H^(+) rarr

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  12. What happens when 80% of copper combines with 20% of tin?

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  13. What is chromyl chloride test for chlorides ?

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  14. Why is La(OH)3 more basic than Lu(OH)3 ?

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  15. What is the most common oxidation state in the Lanthanoids ?

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  16. How many unpaired electrons are present in Gd(Z = 64) ?

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  17. Name the actinoid used for the manufacture of fine rods for atomic rea...

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  18. Arrange Ce^(3+) (Z = 58), Sm^(3+) (Z = 62) and Yb^(3+)(Z = 70) in decr...

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  19. Name the basic cause of similar atomic radii of Hf and Zr.

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  20. Does actinoids show actinoid contraction similar to lanthanoid contrac...

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