Q. The states of hybridisation of boron and oxygen atoms in boric acid $(\ H_{3}BO_{3})$ are respectively
A) $sp^{2}\$and $sp^{2}$
B) $sp^{2}\$and $sp^{3}$
C) $sp^{3}\$and $sp^{2}$
D) $sp^{3}\$and $sp^{3}$
Explanation
(b)
$H_{3}BO_{3}$ has structure
[image:4_image179.emf]
Boron has three bonds thus $sp^{2}\ hybrdised.Each\ oxygen\ has\ two\ bonds\ and\ two\ lone\ pair\ hence\ sp^{3}hybridised.$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.