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Potassium Dichromate

Given below a...

Question

Given below are the statements about diborane.
(a) Diborane is prepared by the oxidation of $N a B H_{4}$ with $I_{2}$ .
(b) Each boron atom is in $s p^{2}$ 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 :

A

(c) only

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B

(a) and (b) only

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C

(c) and (d) only

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D

(a) only

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Solution

The correct option is D (a) only
$2 N a B H_{4} + I_{2} ⟶ B_{2} H_{6} + 2 N a l + H_{2}$

In $B_{2} H_{6}$ , $B$ atoms are $s p^{3}$ hybridised
$B_{2} H_{6}$ has two bridged $3 c - 2 e$ bonds
$B_{2} H_{6}$ is non planar

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Similar questions

Q. Some statements about the structure of diborane are given below :
A) NMR and RAMAN spectral studies have confirmed that four hydrogens of diborane are one type and remaining two are of another type.
B) Electron diffraction studies have shown that diborane contains two coplanar

B H_{2}

groups.
C) Diborane is a planar molecular.
D) Boron of diborane undergoes

s p^{2}

hybridisation
The correct statements are :

Q. Assertion: In diborane, each B atom is

s p^{3}

Reason: In diborane, the terminal 2-centre-2-electron B-H bonds are called banana bonds.

Select the correct option.

Q. The molecular shapes of diborane is shown: Consider the following statements for diborane:
1. Boron is approximately

s p^{3}

B - H - B

180^{\circ}

.
3. There are two terminal

B - H

bonds for each boron atom.
4. There are only

12

bonding electrons available.
The correct statement(s) is/are:

Q. Consider the following statements for diborane.

1) Boron is approximately

s p^{3}

B - H - B

180^{o}

3) There are two terminal

B - H

bonds for each boron atom.

4) There are only

12

bonding electrons available.

Q. The molecular shapes of diborane is shown below.
Consider the following statements for diborane :
1. Boron is approximately

s p^{3}

B - H - B

180^{\circ}

3. There are two terminal

B - H

bonds for each boron atom
4. There are only 12 bonding electrons available

The correct statements are:

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