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  • The oxoacid of phosphorus that is easily obtained from a reaction of alkali and white phosphorus and has two P-H bonds, is :Option: 1 Phosphonic acid

The oxoacid of phosphorus that is easily obtained from a reaction of alkali and white phosphorus and has two P-H bonds, is :

Option: 1

Phosphonic acid


Option: 2

Phosphinic acid


Option: 3

Pyrophosphorus acid


Option: 4

Hypophosphoric acid


Answers (1)

best_answer

White \mathrm{P} disproportionates in basic medium to form \mathrm{\mathrm{PH}_{3} \text { and } \mathrm{NaH}_{2} \mathrm{PO}_{2}}

\mathrm{\mathrm{NaH}_{2} \mathrm{PO}_{2}}  can be acidified to form  \mathrm{\mathrm{H}_{3} \mathrm{PO}_{2}}

                    

\mathrm{\mathrm{H}_{3} \mathrm{PO}_{2}}  is called as hypophosphoric acid or phosphinic acid.

Hence correct option is 2

Posted by

seema garhwal

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