Questions
Some statements about the structure of diborane are given below
A) Studies have confirmed that four hydrogens of diborane are one type and remaining two are of another type
B) Diborane contains two coplanar BH2 groups
C) Diborane is a planar molecule
D) Boron of diborane undergoes sp2 hybridization
The correct statements above are
detailed solution
Correct option is B
Diborane do not possess the ethane like structure, because in ethane formation 14 electrons are involved where as indiborane formation only 12 valency electrons are involved.Hence the diborane structure not similar to that of ethane.Experimental evidences for diborane structure I) From specific heat data values we can conclude that in between the two boron atoms free rotation is not possible.II) From electron diffraction studies in diborane two BH2 groups are present in one plane and bridged hydrogen atoms are perpendicular to the BH2 plane. III) From NMR and Raman spectral analysis data in diborane two types of hydrogen atoms are present.a) Four terminal hydrogen atomsb) Two bridged hydrogen atoms.IV) Diborane on methylation gives tetramethylated diborane ,the bridged hydrogen atoms do not involve in methylation.V) From bond-length data in diborane in diborane two types of B — H bond lengths are present .a) Terminal B — H bond length1.19A0b) Bridged B — H bond length is 1.34A0Similar Questions
Which of the following molecular hydrides acts as a Lewis acid?
Get your all doubts cleared from
Sri Chaitanya experts
799 666 8865
support@infinitylearn.com
6th Floor, NCC Building, Durgamma Cheruvu Road, Vittal Rao Nagar, HITEC City, Hyderabad, Telangana 500081.
JEE Mock Tests
JEE study guide
JEE Revision Notes
JEE Important Questions
JEE Sample Papers
JEE Previous Year's Papers
NEET previous year’s papers
NEET important questions
NEET sample papers
NEET revision notes
NEET study guide
NEET mock tests