Given below are the statements about diborane:

(a) Diborane is prepared by the oxidation of with

(b) Each boron atom is in hybridized state

(c) Diborane has one bridged 3-centre-2-electron bond

Question

Given below are the statements about diborane:

(a) Diborane is prepared by the oxidation of  with

(b) Each boron atom is in  hybridized state

(c) Diborane has one bridged 3-centre-2-electron bond

(d) Diborane is a planar molecule

The option with correct statement(s) is

Canvas Classes · Accepted Answer

Analysis:

(a) TRUE — Diborane is prepared by oxidation of  with :
 ✓

(b) FALSE — In , each B atom is sp³ hybridized (not sp²). The terminal H atoms use sp³ orbitals, and the bridging bonds involve sp³ orbitals of B. ✗

(c) FALSE — Diborane has two 3-centre-2-electron (3c-2e) bridging bonds, not one. ✗

(d) FALSE — Diborane is NOT planar. The bridging H atoms are above and below the plane of the four terminal H atoms and two B atoms. ✗

Answer: Option (2) — (a) only

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