Which allotrope of phosphorus is also called yellow phosphorus?(a) Black phosphorus(b) Red phosphorus(c) Beta- black phosphorus(d) White phosphorusThe question was posed to me by my school principal while I was bunking the class.This intriguing question originated from P-Block Elements in division P-Block Elements of Chemistry – Class 12

Which allotrope of phosphorus is also called yellow phosphorus?(a) Bla

1.	Which allotrope of phosphorus is also called yellow phosphorus?(a) Black phosphorus(b) Red phosphorus(c) Beta- black phosphorus(d) White phosphorusThe question was posed to me by my school principal while I was bunking the class.This intriguing question originated from P-Block Elements in division P-Block Elements of Chemistry – Class 12
Answer» The correct answer is (d) White PHOSPHORUS Easiest explanation: White phosphorus on exposure to LIGHT, it TURNS yellow. It glows greenish in the dark (when exposed to oxygen) and is highly flammable and PYROPHORIC (self-igniting) upon contact with air. Therefore it is called yellow phosphorus.

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