Exams › JEE Main › Chemistry

Which of the following is a true peroxide?

1. BaO2
2. MnO2
3. PbO2
4. NO2

Correct answer: BaO2

Solution

BaO2 is a true peroxide because it contains the peroxide ion (O2²-), which is characterized by the presence of an O-O bond. In contrast, the other options do not contain this specific ion structure.

Related JEE Main Chemistry questions

• Which statement correctly describes how chemical reactivity changes down the group for alkali metals and halogens?
• When zeolite, a hydrated sodium aluminium silicate, is used with hard water, which ions from the water replace the sodium ions in the zeolite?
• Among the following carbonates, which one is the least thermally stable?
• The solubility of carbonates falls as we move down the magnesium group because there is a reduction in the
• Which of the following salts fails to give any colour in a flame test?
• Which statement about sodium peroxide, Na2O2, is incorrect?

⚔️ Practice JEE Main Chemistry free + battle 1v1 →