SELECT * FROM question_mgmt as q WHERE id=2064 AND status=1 SELECT id,question_no,question,chapter FROM question_mgmt as q WHERE courseId=3 AND subId=9 AND chapterId=62 and ex_no='2' AND status=1 ORDER BY CAST(question_no AS UNSIGNED) CBSE Free NCERT Solution of 12th chemistry The p-Block Elements write main differences between the properties of w

Question:

Write main differences between the properties of white phosphorus and red phosphorus.

Answer:

White phosphorus Red Phosphorus

It is a soft and waxy solid. It possesses a garlic smell.

 It is a hard and crystalline solid, without any smell.
It is poisonous. It is non-poisonous.
It is insoluble in water but soluble in carbon disulphide. It is insoluble in both water and carbon disulphide.
It undergoes spontaneous combustion in air. It is relatively less reactive.

In both solid and vapour states, it exists as a P4 molecule.

It exists as a chain of tetrahedral P4 units.

 


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