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P reacts with Cl(2) to form two types of...

P reacts with `Cl_(2)` to form two types of halides (A and B). The halide A is a yellowish-white powder and the halide B is a colourless oily Iiquid. ldentify A and B and predict the products obtained on their hydrolysis.

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The halide A is `PCl_(5)` (a yellowish-white powder) and the halide B is `PCl_(3)` (a colourless oily liquid).
`P_(4)+10Cl_(2)to4PCl_(5),P_(4)+6Cl_(2)to4PCl_(3)`
On hydrolysis, `PCl_(3)` produces phosphorus acid `(H_(3)PO_(3))` and HCl, but `PCl_(5)` produces phosphoric acid `(H_(3)PO_(4))` and HCl .
`PCl_(3)+3H_(2)OtoH_(3)PO_(3)+3HCl`
`PCl_(5)+4H_(2)OtoH_(3)PO_(4)+5HCl`
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