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Why does PCI(3) fume in moisture ?...

Why does `PCI_(3)` fume in moisture ?

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(a) Why does PCl_3 fume in moisture ? (b) Are all the five bonds in PCl_5 molecule equivalent ? Justify your answer. ( c) How do you account for the reducing behaviour of H_3 PO_2 on the basic of its structure ? (d) Give the disproportional reaction of H_3PO_3 .

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XII BOARDS PREVIOUS YEAR-XII BOARDS-IMPORTANT QUESTIONS FOR PRACTICE CHEMISTRY (THEORY-XII) UNSOLVED)
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  2. Name the methods used for the vapour phase refining of impure titanium...

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  3. Why does PCI(3) fume in moisture ?

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  4. How many methyl bromide be preferentially converted to methyl isocyani...

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  5. Draw the structure of the compound named 4-methylpent-3-en-2-one

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  7. What are limited spectrum are antibiotics ? Give one example.

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  8. An aqueous solution of sodium chloride freezes below 273 K. Explain th...

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  9. The conductivity of 0.001 M acetic is 4 xx 10^(-5)S//cm. Calculate th...

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  10. Explain the following : (a) Same substance can act both as colloids ...

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  11. How are the following colloidal solutions prepared ? (a) Sulphar in ...

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  12. Explain the following : (a) NO(2) readily forms a dimer. (b) BiCI...

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  13. What is lanthanoid contraction? What are the consequences of lanthanol...

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  14. Explain the following reactions : (a) Gabriel Phthalimide reaction ...

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  15. Give chemical tests to distinguish between the following pairs of comp...

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  16. Explain the following terms with suitable examples : (a) Cationic de...

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  17. An element occurs in bcc structure. It has a cell edge length of 250pm...

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  18. The partial pressure of ethane over a saturated solution containing 6....

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  19. (a) What are fuel cells ? Explain the electrode reactions involved in ...

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