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What do you understand by roasting in pr...

What do you understand by roasting in presence of NaCl?

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Roasting in presence of NaCl involves heating of the ore with NaCl in excess of air to temperature that the ore does not melt. For example, `Ag_2S` ore is heated with `NaCl` to get `AgCl`
`Ag_2S+NaCloverset(air)to2AgCl+Na_2S`
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CENGAGE CHEMISTRY-APPENDIX INORGANIC VOLUME 2-Short Answer Type
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  2. The value of triangle(f)G^(ɵ)(Cr2O3)=-540kJmol^-1 and triangle(f)G^(ɵ)...

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  3. What do you understand by roasting in presence of NaCl?

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  4. Why NF3 cannot be hydrolysed, while NCl3 can be readily hydrolysed?

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  5. Why NI5 does not exist While PCl5 exists?

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  6. Why the boiling point of ammonia is greater than phosphine?

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  7. Why NO is paramagnetic?

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  8. Give reason why elemental nitrogen exitsts as diatomic molecule wherea...

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  9. Why nitrogen gas is inert?

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  10. Why phosphorus is more reactive than nitrogen?

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  11. Why nitrogen does not form penthalides?

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  12. Why bismuth does not from pentahalides?

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  13. What type of hydridisation is involveed in the formation of pentahalid...

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  14. An element X belongs to group I or 2 or 15. Its oxide react with water...

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  15. A simole oxide of carbon and that another non-metal have the same Cp/C...

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  16. Which among the following is strongest reducing agent? BiH3,AsH3,PH3 a...

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  17. Which among N2O,P2O5,Sb2O and Bi2O5 is most unstable?

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  18. The electronegativity of nitrogen and chlorine is 3.0 Why nitrogen is ...

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  19. Arrange the following in the increasing order of the properties stated...

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  20. Arrange the above hydrides in order of increasing basic nature.

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