In the reaction BCl3+PH3→[Cl3B←PH3] the Lewis base is:
A
BCl3
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B
PH3
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C
both
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D
none of them
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Solution
The correct option is BPH3 Lewis base is one which donates pair of electron and in our reaction PH3 is donating pair of electron to BCl3 soPH3 is a lewis base.