Question

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P4 forms PCl3 and PCl5 both? Give reason​

Answer 1

Answer:

there are many isotope of p4

Explanation:

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Answer 2

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☁︎There are valent d-orbitals in the outer most orbit of phosphorus and hence it shows variable covalence 3 and 5 in ground state and excited state respectively. Hence nitrogen forms only NCl3 but phosphorus forms PCl3 and PCl5 both.☁︎