5 public questions tagged with this topic.
In B₂H₆ , each boron is sp³ hybridized, forming two normal B-H bonds and two 3-center-2-electron bridge bonds.
Ref: NCERT Class 11 Chemistry > Chapter 4: Chemical Bonding and Molecular Structure > Topic: Valence Bond Theory and Hybridisation - sp sp2 sp3 dsp2
Acidity of group 13 trioxides decreases down the group. B₂O₃ (B, smallest) is the most acidic, forming boric acid, unlike Al₂O₃ (amphoteric), Ga₂O₃, or In₂O₃.
Ref: NCERT Class 11 Chemistry > Chapter 3: Classification of Elements and Periodicity in Properties > Topic: Nomenclature of Elements with Atomic Number >100
B (group 13, valence 3) and F (group 17, valence 1) form BF₃, a stable covalent compound, unlike BF, BF₂, or B₂F₃.
Ref: NCERT Class 11 Chemistry > Chapter 3: Classification of Elements and Periodicity in Properties > Topic: Modern Periodic Law and Present Form - Long Form Periodic Table
B forms B₂H₆, an electron-deficient hydride with three-center two-electron bonds, unlike Al (AlH₃, polymeric), Ga, or In, which form less distinct hydrides.
Ref: NCERT Class 11 Chemistry > Chapter 3: Classification of Elements and Periodicity in Properties > Topic: Genesis of Periodic Classification - Dobereiner Newlands Mendeleev
Metallic character increases down group 13. B (period 2) is a metalloid with minimal metallic properties, unlike Al, Ga, or In, which are more metallic.
Ref: NCERT Class 11 Chemistry > Chapter 3: Classification of Elements and Periodicity in Properties > Topic: Anomalous Properties and Second Period and Chemical Reactivity
