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Give the disproportionation reaction of ...

Give the disproportionation reaction of` H_3PO_3`

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`H_3PO_3 ` disproportionate on heating as :
`4H_3PO_3 to 3H_3PO_4 + PH_3`
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MBD -HARYANA BOARD-P BLOCK ELEMENTS-LONG ANSWER TYPE QUESTION
  1. Give the disproportionation reaction of H3PO3

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  2. (a) Complete the following chemical equation : (i) HgCl2 + PH3 to ...

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  3. List the uses of Helium, Neon and Argon gases.

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  4. (a) Among group 18 elements, only Xe can from compounds. Explain. (...

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  5. (a) The basic character among the hydrides of group-15 elements decrea...

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  6. Arrange the following in the order or property indicated for each set ...

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  7. (a) Give names of some oxoacids of halogens. (b) Arrange the follo...

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  8. Name oxoacids of chlorine and their formulae.

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  9. Explain the following: (a) How is XeF4 prepared ? Give its molecu...

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  10. Explain the following: (a) Arrange HCI, HI, HBr, HF in increasing o...

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  11. List the important oxoacids of phosphorus and their formulae .

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  12. Name five oxoacids of phosphorus and their formulae

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  13. Give two important use of NH3 and chemical reaction of NH3 with (i)...

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  14. (a) How will you prepare nitric acid (b) Discuss the structure of n...

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  15. Explain the following : (a) PH3 has lower boiling point than NH3 , w...

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  16. Describe Ostwald process for the manufacture of Nitric acid. Give uses...

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  17. (i) Ammonia is good complexing agent. Explain. (ii) PCI exists as [...

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  18. Name the various hydrides of group 16 elements. Arrange these hydrides...

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  19. Write the names and formulae of any five oxyacids of sulphur.

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  20. (a) What are interhalogen compounds ? Give examples. (b) Why are ...

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  21. Which of the two H2O or H2S has higher boiling point ? Explain.

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