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Write the ionic equation showing the oxi...

Write the ionic equation showing the oxidising action of `K_2Cr_2O_7` with `H_2S`.

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USHA PUBLICATION-D- AND F_BLOCK ELEMENT & CO-ORDINATION COMPOUND -EXERCISE
  1. Azurite is the ore of .

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  2. Copper metal obtained from Bessemer converter is known as .

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  3. Write the ionic equation showing the oxidising action of K2Cr2O7 with ...

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  4. Annealing is a process in which

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  5. All transition metals are d-block element but all d-block elements are...

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  6. What are the ambidentate ligands ? Give examples.

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  7. What is difference between calcination and roasting ?

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  8. Find EAN of Fe in K4[Fe(CN)6]

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  9. When steam is passed over red hot iron, the products formed are

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  10. What is the effect of Increasing pH on a solution of potassium dichrom...

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  11. What is Goldschmidt aluminothermic process ?

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  12. What happens when copper turnings are heated with conc. H2SO4 ?

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  13. What is lanthanide contraction? Write any two of its consequences.

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  14. On the basis of effective atomic number rule explain the hybridisation...

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  15. Suggest Chemical test to show that [Co(NH3)5Cl]SO4 and [Co(NH3)5SO4]Cl...

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  16. What is ligand?

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  17. Explain why transition metal ions are usually coloured.

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  18. Write three main postulates of VBT for explaining bonding in co-ordina...

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  19. What is leaching ? Glve an example.

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  20. [Fe(CN)6]^(4-) and [Fe(H2O)6]^(2+), are of different colours in dilate...

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