Question

1. Compare the physical states of nitrogen and
phosphorus.
2. Describe the method of preparation of elemental
phosphorus from Ca ,(PO4)2
3. Name important oxides of nitrogen, oxoacids of
nitrogen and phosphorus. Give their structures.
4. Give preparation, properties and uses of ammonia.

5. Give preparation, properties and uses of phosphine.



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Answer 1

Answer:

1.N occures as gaseous N4(which is unreactive due to the high energy required to break the strong triples bound), whereas P occures in many allotropes,including white phosphorus, P4,which all contain P-P single bounds.P4 is very reactive due to the bound strain in the tetrahedral P4 molecule

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Answer 2

Answer:

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