KCET · Chemistry · p Block Elements (Group 15, 16, 17 & 18)
Phosphorus pentachloride
- A on hydrolysis gives an oxo-acid of phosphorus which is tribasic
- B on hydrolysis gives an oxo-acid of phosphorus which is a good reducing agent
- C Has all the five equivalent bonds
- D exists as an ionic solid in which cation has octahedral structure and anion has tetrahedral structure
Answer & Solution
Correct Answer
(A) on hydrolysis gives an oxo-acid of phosphorus which is tribasic
Step-by-step Solution
Detailed explanation
Phosphorus pentachloride on hydrolysis gives an oxo acid of phosphorus which is tribasic.
\(\mathrm{PCl}_{5}+4 \mathrm{HOH} \longrightarrow \mathrm{H}_{3} \mathrm{PO}_{4}+5 \mathrm{HCl}\)
Here, phosphoric acid \(\left(\mathrm{H}_{3} \mathrm{PO}_{4}\right)\) is tribasic.
\(\mathrm{PCl}_{5}+4 \mathrm{HOH} \longrightarrow \mathrm{H}_{3} \mathrm{PO}_{4}+5 \mathrm{HCl}\)
Here, phosphoric acid \(\left(\mathrm{H}_{3} \mathrm{PO}_{4}\right)\) is tribasic.
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