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For a very dilute aqueous solution of H(...

For a very dilute aqueous solution of `H_(3)PO_(3)` van't Hoff factor

A

`i=7`

B

`i=3`

C

`i=4`

D

`i=5`

Text Solution

Verified by Experts

The correct Answer is:
B
`H_(3)PO_(3)` ionises in water as
`H_(3)PO_(3) hArr 2H^(+) +HPO_(3)^(2-)`
`:. i=3`
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