Question

Total number of \(2c-2e^{-}\) and \(3c-2e^{-}\) bonds present in diborane is _ _ _ _ _ .

Hint:

Diborane has 4 terminal (2c-2e) and 2 bridge (3c-2e) bonds → total = 6 bonds.

Answer 1

Correct Answer: 6

Concept: Diborane (\(\mathrm{B_2H_6}\)) contains:
•Terminal B–H bonds → \(2c-2e\) bonds
•Bridge B–H–B bonds → \(3c-2e\) bonds

Step 1: Count bonds
•Terminal bonds = 4 \(\Rightarrow\) \(4\) (2c-2e)
•Bridge bonds = 2 \(\Rightarrow\) \(2\) (3c-2e)

Step 2: Total bonds \[ \text{Total bonds} = 4 + 2 = 6 \] Conclusion \[ 6 \]