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Which species could be reduced to form NO2?A.     N2OB.     NO3−C.     HNO2D.     NO

Question

Which species could be reduced to form NO2?A.     N2OB.     NO3−C.     HNO2D.     NO

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Solution

The species that could be reduced to form NO2 is NO3− (B).

Here's the step-by-step explanation:

Reduction is a chemical reaction that involves the gaining of electrons. When a molecule is reduced, it gains electrons, which decreases its oxidation state.

  1. N2O: The nitrogen in N2O is already at a lower oxidation state (+1) than in NO2 (+4). Therefore, N2O cannot be reduced to NO2.

  2. NO3−: The nitrogen in NO3− is at a higher oxidation state (+5) than in NO2 (+4). Therefore, NO3− can be reduced to NO2.

  3. HNO2: The nitrogen in HNO2 is already at the same oxidation state (+3) as in NO2 (+4). Therefore, HNO2 cannot be reduced to NO2.

  4. NO: The nitrogen in NO is at a lower oxidation state (+2) than in NO2 (+4). Therefore, NO cannot be reduced to NO2.

So, the correct answer is B. NO3−.

This problem has been solved

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