MCQ
Why does $PCl_3$ fume in moisture ?
- ABecause of formation of $H_3PO_3$
- ✓Because of formation of $HCl$
- CBecause of moisture
- DNone
✓
Answer
Correct option: B.
Because of formation of $HCl$
b
Reaction of $PCl _3$ with moisture
Reaction of $PCl _3$ with moisture
$PCl _3$ combines with moisture and undergoes hydrolysis giving fumes of $HCl$.
Involved Reaction: $PCl _3+3 H _2 O \rightarrow H _3 PO _3+3 HCl$
Hence, due to formation of $HCl , PCl _3$ fumes in moisture.
Final answer: Due to formation of $HCl$.
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