Question:
In which of the following reactions phosphine is not formed?
In which of the following reactions phosphine is not formed?
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Only hydrolysis of metal phosphides and phosphonium salts yields phosphine.
Updated On: May 12, 2025
- $P_4 + 3NaOH + 3H_2O \rightarrow$
- $PCl_3 + 3H_2O \rightarrow$
- $PH_4I + KOH \rightarrow$
- $Ca_3P_2 + 6H_2O \rightarrow$
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The Correct Option is B
Solution and Explanation
Phosphine (PH$_3$) is formed in reactions involving hydrolysis of metal phosphides or certain phosphorus compounds:
- (1) $P_4$ reacts with NaOH and H$_2$O to give PH$_3$
- (3) $PH_4I$ reacts with alkali to give PH$_3$
- (4) $Ca_3P_2$ with water gives PH$_3$
- (2) $PCl_3$ with water gives H$_3$PO$_3$, not PH$_3$
- (1) $P_4$ reacts with NaOH and H$_2$O to give PH$_3$
- (3) $PH_4I$ reacts with alkali to give PH$_3$
- (4) $Ca_3P_2$ with water gives PH$_3$
- (2) $PCl_3$ with water gives H$_3$PO$_3$, not PH$_3$
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