The correct decreasing order of basic strengt | vedclass

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Question

(A) The basic strength of a species is inversely proportional to the stability of its conjugate acid. $1$. The conjugate acids of the given species ar

Vedclass · Accepted Answer

$NH_2^{-} > OH^{-} > NH_3 > H_2O$

Vedclass · Answer

(A) The basic strength of a species is inversely proportional to the stability of its conjugate acid. $1$. The conjugate acids of the given species are: $H_2O \rightarrow H_3O^{+}$,$NH_3 \rightarrow NH_4^{+}$,$OH^{-} \rightarrow H_2O$,$NH_2^{-} \rightarrow NH_3$. $2$. Comparing the acidity of the conjugate acids: $H_3O^{+} > NH_4^{+} > H_2O > NH_3$. $3$. Since the basic strength is the reverse of the acidity of the conjugate acid,the order of basic strength is: $NH_2^{-} > OH^{-} > NH_3 > H_2O$. $4$. $NH_2^{-}$ is the strongest base because nitrogen is less electronegative than oxygen,making the lone pair more available for donation.

Species	Conjugate acid
$ (a) NH_{3} $	$ (i) H_{2}CO_{3} $
$ (b) HCO_{3}^{-} $	$ (ii) H_{3}O^{+} $
$ (c) H_{2}O $	$ (iii) NH_{4}^{+} $
$ (d) HSO_{4}^{-} $	$ (iv) H_{2}SO_{4} $

The correct decreasing order of basic strength of $H_2O$,$NH_3$,$OH^{-}$,and $NH_2^{-}$ is:

Similar Questions

Match the following species with their respective conjugate acids:

Species Conjugate acid

$ (a) NH_{3} $ $ (i) H_{2}CO_{3} $

$ (b) HCO_{3}^{-} $ $ (ii) H_{3}O^{+} $

$ (c) H_{2}O $ $ (iii) NH_{4}^{+} $

$ (d) HSO_{4}^{-} $ $ (iv) H_{2}SO_{4} $

Which of the following is not a $Br\o nsted$ acid?

When ammonia is added to water,which of the following ions is responsible for the increase in its basicity (or decrease in $H_3O^+$ concentration)?

What is a protonic acid?

State the Lewis acid-base principle.

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