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What is the nature of the bond between B and O in\left(\mathrm{C}_{2} \mathrm{H}_{5}\right)_{2} \mathrm{OBH}_{3}


Option: 1


Option: 2

 Co-ordinate covalent

Option: 3

 lonic bond

Option: 4

 Banana shaped bond

Answers (1)


The type of bond present in \left(\mathrm{C}_{2} \mathrm{H}_{5}\right)_{2} \mathrm{OBH}_{3} is a coordinate covalent bond. The lone pair over the Oxygen is donated to the vacant p orbital of Boron atom as shown below

                \left(\mathrm{C}_{2} \mathrm{H}_{5}\right)_{2} \mathrm{O:}\longrightarrow \mathrm{BH}_{3}

Hence, the correct answer is Option (2)

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