p-Block elementsHard
Question
Which of the following statement is incorrect for phosphine ?
Options
A.It is not very soluble in water and aqueous solution is neutral.
B.The solution of PH3 in water is stable even in presence of sun light.
C.It does react with gaseous HI to form PH4I.
D.The spontaneous combustion of phosphine is technically used in Holme′s signals.
Solution
(A) It is slightly soluble in water ; the aqueous solution being neutral.
(B) The solution of PH3 in water decomposes in presence of light giving red phosphorus and H2.
(C) Phosphonium compounds are obtained when anhydrous phosphine reacts with anhydrous halogen acids (not in aqueous solution).
(D) Containers containing calcium carbide and calcium phosphide are pierced and thrown in the sea when the gases evolved burn and serve as a signal.
(B) The solution of PH3 in water decomposes in presence of light giving red phosphorus and H2.
(C) Phosphonium compounds are obtained when anhydrous phosphine reacts with anhydrous halogen acids (not in aqueous solution).
(D) Containers containing calcium carbide and calcium phosphide are pierced and thrown in the sea when the gases evolved burn and serve as a signal.
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