Which of the following is the electron deficient molecule?

Question

Which of the following is the electron deficient molecule? (A) B 2 H 6 (B) C2 H6 (C) PH 3 (D) SiH 4

Tardigrade Admin · Accepted Answer

B2 H6 is electron deficient molecule because boron atom has three half-filled orbitals in excited state. The structure of B2 H6 is represented as follows: <img class="img-fluid question-image" alt="image" src="https://cdn.tardigrade.in/img/question/chemistry/78c7755254d020080e68065f62f2ea37-.png" /> In it two electrons of a B-H bond are involved in formation of three centre bond, these bonds are represented as dotted lines.

Q. Which of the following is the electron deficient molecule?

$B_{2} H_{6}$

$C_{2} H_{6}$

$P H_{3}$

$S i H_{4}$

Q. Which of the following is the electron deficient molecule?

B2​H6​

C2​H6​

PH3​

SiH4​

B2​H6​ is electron deficient molecule because boron atom has three half-filled orbitals in excited state. The structure of B2​H6​ is represented as follows: In it two electrons of a B−H bond are involved in formation of three centre bond, these bonds are represented as dotted lines.

$B_{2} H_{6}$

$C_{2} H_{6}$

$P H_{3}$

$S i H_{4}$