Question
Chemistry Question on p -Block Elements
Which of the following is the electron deficient molecule?
A
B2H6
B
C2H6
C
PH3
D
SiH4
Answer
B2H6
Explanation
Solution
Due to the boron atom's three half-filled orbitals in an excited state, B2H6 is an electron-deficient molecule. B2 H6's structure is shown as follows:
In it, three centre bonds are formed by the involvement of two B-H bond electrons; these bonds are indicated by a dotted line.
Therefore, the correct option is (A): B2H6