Published by:
CGP EDU Academic Team
Published on: August 13, 2026
Which of the following is incorrect?
A
act as ligand through the N atom
B
In HF liquid HNO 3 behave as a base
C
The oxidizing action of HNO 3 is inhibited in the presence of urea
D
HNO 3 gives positive brown ring test
Text Solution
Verified by ExpertsThe correct answer is:
A
NO 3 – is a poor ligand coordinating through oxygen atom forming nitrato complex
In the presence of strong proton donor, HF, HNO 3 behave as proton acceptor (base)
2HF + HNO 3 ⎯→ H 3 O + + NO 2 + + 2F –
HNO 3 act as an oxidising agent due to traces of HNO 2 or NO 2 . In the presence of urea, HNO 2 destroyed.
HNO 3 or NO 3 – produce brown ring complex, [Fe(H 2 O) 5 NO] 2+ in acidified FeSO 4 solution.
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