BX3 + NH3 BX3.NH3 + Heat of adduct formation (H)<br>The numerical value of H is found to be maximum — p Block Elements Chemistry Question
Question
BX3 + NH3 $\xrightarrow{\text{R.T.}}$ BX3.NH3 + Heat of adduct formation ($\Delta$H)<br>The numerical value of $\Delta$H is found to be maximum for :
Answer: D
💡 Solution & Explanation
Lewis acidic strength : BF3 < BCl3 < BBr3 < BI3. As BI3 is strongest lewis acid among all boron halides therefore, heat of adduct formation will be maximum numerically, for BI3.
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