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RAJ RANJAN SINGH Grade:
        

WHICH OF THE FOLLOWNG MOLECULES FORM 2ELECTRON 3 CENTERED BONDS


    AL2CL6     HG2CL2     B2H6       BH3


    AND WHY EXP. IN DTAL

6 years ago

Answers : (1)

suryakanth AskiitiansExpert-IITB
105 Points
										

Dear Raj,


B2H6 is the answer,


The monomer BH3 is unstable since the boron atom is only surrounded by six valence electrons, and thus, to form a stable octet, shares electrons with a B-H bond on another boron atom, forming a B-H-B 3-center-2-electron bond. In diborane, there are two such bonds: two H atoms bridge the two B atoms, leaving two additional H atoms in ordinary B-H bonds on each B.


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Askiitians Expert


Suryakanth –IITB

6 years ago
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