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Which of the following is incorrect reg...

Which of the following is incorrect regarding concentrated nitric acid?

A

Sulphur is oxidised by conc. `HNO_(3)` to sulphuric acid

B

Carbon on treatment with conc. `HNO_(3)` yields `NO_(2)+CO_(2)+H_(2)O`

C

Phosphorus reacts with conc. `HNO_(3)` to yield orthophosphoric acid

D

Iodine is oxidized by conc. `HNO_(3)` to periodic acid

Text Solution

Verified by Experts

The correct Answer is:
4

Nitric acid is a powerful oxidizing agent.Teh concentrated acid behaves thsu with reducing agents:
`2HNO_(3)rarrH_(2)O+2NO_(2)+O`
`S+6HNO_(3)rarrH_(2)SO_(4)+2H_(2)O+6NO_(2)`
`C+4NHO_(3)rarrCO_(2)+2H_(2)O+4NO_(2)`
`P+5HNO_(3)rarrH_(3)PO_(4)+H_(2)O+5NO_(2)`
`I_(2)+10HNO_(3)rarr2HIO_(3)+4H_(2)O+10NO_(2)`
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