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CGP EDU Academic Team
Published on: August 11, 2026
What is/are not true about phosphine (PH 3 ) ?
Text Solution
Verified by ExpertsThe correct answer is:
CHECK THE SOLUTION.
(a,b)
PH 3 is a lewis base but is neutral towards red litmus.
It does not react with HCl(aq) or HI(aq). This is because water decomposes PH 4 X formed to give back PH 3 .
It reacts only with anhydrous HI or HBr.
2Na 3 P + 3H 2 SO 4 ⎯→ 3Na 2 SO 4 + 2PH 3 
; Ca 3 P 2 + 6HCl ⎯→ 3CaCl 2 + 2PH 3
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