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Phosphine and Phosphorus Chloride is considered one of the most asked concept.
18 Questions around this concept.
Reaction of thionyl chloride with white phosphorus forms a compound [A], which on hydrolysis gives [B], a dibasic acid. [A] and [B] are respectively
PHOSPHINE
PHOSPHORUS TRICHLORIDE
It is obtained by passing dry chlorine over heated white phosphorus.
It can also obtained by the action of thionyl chloride with white phosphorus.
It is a colourless oily liquid and hydrolyses in the presence of moisture.
It reacts with organic compounds containing –OH group and replaces it with a -Cl group
PHOSPHORUS PENTACHLORIDE
It is obtained by reaction of excess dry chlorine with white phosphorus.
It can also obtained by the reaction of sulphuryl chloride with white phosphorus.
It is a colourless oily liquid and hydrolyses in the presence of moisture.
(partial hydrolysis)
(complete hydrolysis)
It reacts with organic compounds containing –OH group and replaces it with a -Cl group
It can convert finely divided metals into their corresponding chlorides on heating
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