Chemistry - CHEMICAL BONDING Question with Solution | TestHub
ChemistryCHEMICAL BONDINGBack bonding, Bridge bonding & odd electron moleculesMedium2 minQB
ChemistryMediummultiple choice
Consider group IIIA elements , where is the most abundant metal in the earth's crust, forming the shown compound with hydrogen. Which statement(s) is/are correct for these elements and their compounds?
Options:(select one or more)
Answer:
A, D
Solution:
E₂ is aluminium, so E₁ is boron and the drawn compound is Al(BH₄)₃. Its bridging hydrogens have electron-deficient multicentre bonds, so A is true. B is false because hydrogen uses its 1s orbital, not sp³ hybrid orbitals. Association of an electron-deficient hydride does not make it electron-rich as C claims. Diborane has its two B atoms and four terminal H atoms in a plane, with the bridge H atoms outside it; D is true. Answer A,D.
Stream:JEESubject:ChemistryTopic:CHEMICAL BONDINGSubtopic:Back bonding, Bridge bonding & odd electron molecules
⏱ 2mℹ️ Source: QB
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