What is the oxidation number of phosphorus in PCl₃?
Let P = x. Cl = -1. Equation: x + 3(-1) = 0, x - 3 = 0, x = +3.
Ref: NCERT Class 11 Chemistry > Chapter 7: Redox Reactions > Topic: Classical and Electronic Concept of Redox and Oxidation Number
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The hybridization of phosphorus in PCl₃ is:
In PCl₃ , phosphorus has 4 electron pairs (3 bonding, 1 lone), requiring sp³ hybridization, forming a trigonal pyramidal shape.
Ref: NCERT Class 11 Chemistry > Chapter 4: Chemical Bonding and Molecular Structure > Topic: Kossel-Lewis Approach and Octet Rule and Lewis Structures