Multiple choice

Which of the following statements is INCORRECT?

  1. NO2 gas is deep brown coloured.

  2. SO2 cannot be collected over water.

  3. NO is lighter than O2.

  4. Red phosphorus is the most stable allotrope of phosphorus.

  5. N2O is known as laughing gas.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Black phosphorus is the most stable allotrope of phosphorus.

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