Observe the following species:(i) NH_3(ii) Al | vedclass

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(C) Lewis acid is an electron-pair acceptor.$(i)$ $NH_3$: Has a lone pair on $N$, acts as a Lewis base.$(ii)$ $AlCl_3$: $Al$ has an incomplete octet (

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$4$

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(C) Lewis acid is an electron-pair acceptor.$(i)$ $NH_3$: Has a lone pair on $N$, acts as a Lewis base.$(ii)$ $AlCl_3$: $Al$ has an incomplete octet ($6$ electrons), acts as a Lewis acid.$(iii)$ $SnCl_4$: $Sn$ has vacant $d$-orbitals and can expand its octet, acts as a Lewis acid.$(iv)$ $CO_2$: The $C$ atom is electron-deficient due to the high electronegativity of oxygen atoms, acts as a Lewis acid.$(v)$ $Ag^{+}$: $A$ metal cation with vacant orbitals, acts as a Lewis acid.$(vi)$ $HSO_4^{-}$: Can act as a Lewis base (due to lone pairs on $O$) or a Brønsted-Lowry acid, but is not typically classified as a Lewis acid in this context.Therefore, $AlCl_3$, $SnCl_4$, $CO_2$, and $Ag^{+}$ act as Lewis acids.The total count is $4$.

List-$I$	List-$II$
$(1)$ Hydrogen bond	$(A)$ ${\rm{C}}$
$(2)$ Resonance	$(B)$ ${\rm{LiF}}$
$(3)$ Ionic solid	$(C)$ ${\rm{H}}_2$
$(4)$ Covalent solid	$(D)$ ${\rm{HF}}$
	$(E)$ ${\rm{O}}_3$

Observe the following species:
$(i)$ $NH_3$
$(ii)$ $AlCl_3$
$(iii)$ $SnCl_4$
$(iv)$ $CO_2$
$(v)$ $Ag^{+}$
$(vi)$ $HSO_4^{-}$
How many of the above species act as Lewis acids?

Similar Questions

Which of the following order of given properties is incorrect?

The structure of $B_3N_3H_6$ (borazine) is as follows. How many derivative structures of $B_3N_3H_4X_2$ can be derived from the basic structure by the replacement of two hydrogen atoms?

Match the items in List-$I$ with the appropriate examples in List-$II$.

List-$I$ List-$II$

$(1)$ Hydrogen bond $(A)$ ${\rm{C}}$

$(2)$ Resonance $(B)$ ${\rm{LiF}}$

$(3)$ Ionic solid $(C)$ ${\rm{H}}_2$

$(4)$ Covalent solid $(D)$ ${\rm{HF}}$

$(E)$ ${\rm{O}}_3$

$BCl_3$ does not exist as a dimer,but $BH_3$ exists as a dimer $(B_2H_6)$ because:

Which of the following leads to bonding?

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Observe the following species:$(i)$ $NH_3$$(ii)$ $AlCl_3$$(iii)$ $SnCl_4$$(iv)$ $CO_2$$(v)$ $Ag^{+}$$(vi)$ $HSO_4^{-}$How many of the above species act as Lewis acids?