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The Lewis acid character of boron tri halides follows the order : (A) BCl3 > BF3 > BBr3 > BI3 (B) BI — JEE Mains Chemistry Past Papers Chemistry Question

Question

The Lewis acid character of boron tri halides follows the order : (A) BCl3 > BF3 > BBr3 > BI3 (B) BI3 > BBr3 > BCl3 > BF3 (C) BBr3 > BI3 > BCl3 > BF3 (D) BF3 > BCl3 > BBr3 > BI3

Answer: B

💡 Solution & Explanation

Due to back bonding acidic strength of boron tri halide follow following acidic strength order BF3 < BCl3 < BBr3 < BI3

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