In diborane (B2H6) there are

Question

In diborane (B2H6) there are (A) three 3c - 2e- bonds and three 2c - 2e- bonds (B) four 3c - 2e- bonds and two 2c - 2e- bonds (C) two 3c - 2e- bonds and four 2c - 2e- bonds (D) None of the above

Tardigrade Admin · Accepted Answer

The structure of diborane is shown below <img class="img-fluid question-image" alt="image" src="https://cdn.tardigrade.in/img/question/chemistry/2dc505279e7089613f54c567242c7cb6-.png" /> bullet Boron electron bullet Hydrogen electron The four terminal B—H bonds are regular bonds (2c - 2e- bonds) but the two bridge B - H bonds are different and formed only by sharing of two electrons (3c - 2e- bonds).

Q. In diborane $(B_{2} H_{6})$ there are

three $3 c - 2 e^{-}$ bonds and three $2 c - 2 e^{-}$ bonds

four $3 c - 2 e^{-}$ bonds and two $2 c - 2 e^{-}$ bonds

two $3 c - 2 e^{-}$ bonds and four $2 c - 2 e^{-}$ bonds

None of the above

The structure of diborane is shown below

$∙$ Boron electron
$∙$ Hydrogen electron
The four terminal $B — H$ bonds are regular bonds $(2 c - 2 e^{-}$ bonds) but the two bridge $B - H$ bonds are different and formed only by sharing of two electrons ( $3 c - 2 e^{-}$ bonds).

Q. In diborane (B2​H6​) there are

three 3c−2e− bonds and three 2c−2e− bonds

four 3c−2e− bonds and two 2c−2e− bonds

two 3c−2e− bonds and four 2c−2e− bonds