A) H2O
B) HI
C) NO
D) HNO3
Choose which of the following is the reducing agent in the reaction: HNO3 + HI --> NO + I2 + H2O?
2017-05-10 12:41 am
回答 (2)
2017-05-10 12:47 am
HNO₃ + HI → NO + I₂ + H₂O
Explanation 1 :
HI is oxidized because the oxidation number of I increases from -1 (in HI) to 0 (in I₂).
As the reducing agent is oxidized in the reaction, HI is the reducing agent.
Explanation 2 :
HNO₃ is reduced because the oxidation number of N decreases from +5 (in HNO₃) to +2 (in NO).
As HNO₃ is reduced by HI, HI is the reducing agent.
The answer : B) HI
Explanation 1 :
HI is oxidized because the oxidation number of I increases from -1 (in HI) to 0 (in I₂).
As the reducing agent is oxidized in the reaction, HI is the reducing agent.
Explanation 2 :
HNO₃ is reduced because the oxidation number of N decreases from +5 (in HNO₃) to +2 (in NO).
As HNO₃ is reduced by HI, HI is the reducing agent.
The answer : B) HI
2017-05-10 11:49 am
B) HI
收錄日期: 2021-04-24 00:25:18
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