Question

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Q. Explain about Phosphine. It's prep., Properties and uses all.

Answer 1

Hey!
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→ Phosphine ←
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• Molecular Formula :- PH3
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( i ) Preparation Reaction :


=> Na3P + H2O -------------> NaOH + PH3



( ii ) Properties :

•Physical Properties :
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→ It is a colorless gas with a unpleasant smell .

→ Highly poisonous in nature .

→ It's slightly soluble.

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•Chemical Properties :
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→ It is basic in nature due to the presence of lone pair on P.

→ Decomposition is as given :-

.....PH3 -----------> P4 + H2

→Reaction with Nitric Oxide is given :-

......PH3 + NO ----------> H3PO4 ( phosphoric acid ) + N2

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( iii ) Uses :

→ It is used to prepare Holme Signals for the ship's to know the position of rocks in the sea.

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Answer 2

Hi

Here is the answer

Phosphine (IUPAC name: phosphane) is the compound with the chemical formula PH3. It is a colorless, flammable, toxic gas and pnictogen hydride. Pure phosphine is odorless, but technical grade samples have a highly unpleasant odor like garlic or rotting fish, due to the presence of substituted phosphine and diphosphane (P2H4). With traces of P2H4 present, PH3 is spontaneously flammable in air (pyrophoric), burning with a luminous flame. Phosphines are also a group of organophosphorus compounds with the formula R3P (R = organic derivative). Organophosphines are important in catalysts where they complex to various metal ions; complexes derived from a chiral phosphine can catalyze reactions to give chiral, enantioenriched products.

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