Which one of the following acid possesses oxidising, reducing and complex forming properties?
A
HNO3
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B
HCI
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C
H2SO4
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D
HNO2
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Solution
The correct option is DHNO2 In HNO2, N is not in highest oxidation state so it can work as oxidising as well as reducing agent. Also HNO2 is an acid, which forms complex.