The species which acts as a Lewis acid but no | vedclass

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(C) $Bronsted-Lowry$ acid is a chemical species that donates one or more hydrogen ions $(H^+)$ in a reaction.$A$ $Lewis$ acid is a chemical species th

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$BF_3$

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(C) $Bronsted-Lowry$ acid is a chemical species that donates one or more hydrogen ions $(H^+)$ in a reaction.$A$ $Lewis$ acid is a chemical species that accepts an electron pair.$NH_2^{-}$,$O^{2-}$,and $OH^{-}$ all possess lone pairs of electrons,making them $Lewis$ bases.$BF_3$ acts as a $Lewis$ acid because the boron atom is electron-deficient and possesses an empty $p$-orbital,allowing it to accept a lone pair of electrons.However,$BF_3$ does not contain any hydrogen atoms to donate as protons; therefore,it cannot act as a $Bronsted$ acid.

The species which acts as a $Lewis$ acid but not a $Bronsted$ acid is

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