On heating with concentrated NaOH

Question:

On heating with concentrated NaOH solution in an inert atmosphere of CO2, white phosphorus gives a gas. Which of the following statement is incorrect about the gas?

(i) It is highly poisonous and has smelled like rotten fish.

(ii) It’s a solution in water decomposes in the presence of light.

(iii) It is more basic than NH3

(iv) It is less basic than NH3

Solution:

Option (iii) It is more basic than NH3 is the answer.

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