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- Subject
- Group VA and VIA Elementschemistry-mcqs › group-va-and-via-elements
- Published
- 18 Mar 2019
- Last updated
- 28 May 2026
Explanation
Phosphene gas is formed from phosphorous acid when it experiences both reduction and decomposition reactions. Therefore, the correct choice is the combination of reduction and decomposition processes.
More Group VA and VIA Elements MCQs
Practice related questions from the same subject.
- 1.In which of the following compounds does nitrogen exhibit its highest oxidation state?
- 2.Oxygen fails to react with most substances except which of the following?
- 3.Which compound reacts with FeSO4 to produce a brown ring?
- 4.Which gas is not effectively dried using concentrated sulfuric acid?
- 5.Which element exhibits passive behavior upon exposure to concentrated nitric acid?
- 6.Which non-metal belongs to group VIA of the periodic table?
- 7.Which of the following substances is commonly associated with a garlic-like odor?
- 8.What is the chemical formula of the brown ring complex formed during the nitrate test?
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