What is the correct name for the compound with the formula NH_4NO_2?

• A. Ammonium oxide
• B. Ammonium nitrite
• C. Nitrous ammonium
• D. Ammonium nitrate

Answer: (B)

Verified step by step guidance

1. Identify the ions present in the compound NH_4NO_2. The formula consists of NH_4^+ (ammonium ion) and NO_2^- (nitrite ion).
2. Recall that the name of an ionic compound is given by naming the cation first followed by the anion.
3. The cation NH_4^+ is called ammonium, and the anion NO_2^- is called nitrite.
4. Combine the names of the cation and anion to form the compound name: ammonium nitrite.
5. Verify that the name matches the formula by ensuring the charges balance to zero, confirming the compound is correctly named ammonium nitrite.