Recap |Group-13: Boron Family- Trivalent State |Concept Of Back Bonding |Reactivity Towards Air, Halogens|Some Important Compounds Of Boron |Borax Bead Test |Boric Acid |Diborane |OMR|Summary

Recap|Oxidation State|Chemical Properties|Concept Of Back Bonding|Questions|Reactivity Towards Air|Reactivity Towards Acid & Alkalies|Reactivity Towards Halogens|Important Trends & Anomalous Property Of Boron Family|Some Important Compounds Of Boron|Borax Bead Test|Borix Acid (H3Bo3)|Diborane (B2H6)|OMR

Orthoboric Acid|Borax|Reactivity Towards Halogens|Trihalides of Boron|Back Bonding|Summary

Orthoboric Acid|Borax|Reactivity Towards Halogens|Trihalides of Boron|Back Bonding|Summary

Orthoboric Acid|Borax|Reactivity Towards Halogens|Trihalides of Boron|Back Bonding|Summary

Recap |Reactivity |Some Important Examples |Reduction Of Alcohols|Oxidation |Fehling's Test |OMR|Summary

Carbon Family|Electronic Configuration|Covalent Radii|Ionization Enthalpy|Electronegativity|Reactivity Towards Oxygen|Reactivity Towards Water|Reactivity Towards Halogens|Anomalous Behavior Of C|Uses Of Carbon|Some Important Compounds Of Carbon And Silicon|OMR

P-Block Elements (group 15-18)|General properties |Physical properties |Chemical properties|Anomalous property of Nitrogen |Hydrides|Some previous year questions |Properties of Hydrides|Oxides|Halides|Reactivity towards metals |Dinitrogen |Ammonia |NCERT Questions |Nitric Acid |Brown ring test |Phosphorus allotropic form |Group 16 (oxygen family)

P-Block Elements (group 15-18)|General properties |Physical properties |Chemical properties|Anomalous property of Nitrogen |Hydrides|Some previous year questions |Properties of Hydrides|Oxides|Halides|Reactivity towards metals |Dinitrogen |Ammonia |NCERT Questions |Nitric Acid |Brown ring test |Phosphorus allotropic form |Group 16 (oxygen family)

Boron, the first member of group 13 (p-block) is a typical non-metal. H exists in two allotropic forms. The compounds of boron are mainly electron deficient as well as Lewis acids. For example, all the trihalides of boron (BX_(3)) are Lewis acids. The expected order of acidic strength based on the electro negativity of halogen atoms is : BF_(3)gtBC l_(3)gtBBr_(3)gtBl_(3) . But the actual order is the reverse. This is explained with the help of the concept of back bonding (p pi- p pi) . Among the hydrides of boron. diborane has a bridged structure. Which of the following statements of group 13, the one which is most acidic is: