JEE Main & Advanced
JEE Main Paper Phase-I (Held on 08-1-2020 Evening)
question_answer
White phosphorus on reaction with concentrated \[NaOH\]solution in an inert atmosphere of \[C{{O}_{2}}\]gives phosphine and compound (X). (X) on acidification with \[HCl\] gives compound (Y). The basicity of compound (Y) is [JEE MAIN Held on 08-01-2020 Evening]
A)3
B)2
C)4
D)1
Correct Answer:
D
Solution :
Basicity of \[{{H}_{3}}\underset{\left( Y \right)}{\mathop{P{{O}_{2}}}}\,=1\]