AIPMT PRELIMS2005Chemistry-Chemical Bonding
AIPMT PRELIMS 2005 Chemistry Electron Deficient Compounds MCQ Question
Type: MCQ-conceptual-Medium-Class 11
Which of the following is the electron deficient molecule?
A
B₂H₆
B
C₂H₆
C
PH₃
D
SiH₄
Correct Answer
Option A
Detailed Explanation
B₂H₆ (diborane) is an electron-deficient compound because it has fewer electrons than needed for conventional covalent bonds. It forms three-center two-electron bonds (banana bonds) to compensate for the deficiency.
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