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The correct decreasing order of basic st...

The correct decreasing order of basic strength of the following species is ….. `H_(2)O, NH_(3), OH^(-),NH_(2)^(-)`

A

`NH_(2)^(-) gt OH^(-) gt NH_(3) gt H_(2)O`

B

`OH^(-) gt NH_(2)^(-) gt H_(2)O gt NH_(3)`

C

`NH_(3) gt H_(2)O gt NH_(2)^(-) gt OH^(-)`

D

`H_(2)O gt NH_(3)gt OH^(-) gt NH_(3)^(-)`

Text Solution

Verified by Experts

The correct Answer is:
A

Basic strength of the above species can be explained on the basis of electronegativity of central atom and its proton accepting tendency. Here, amide ion is most basic among given compounds due to presence of negative charge and two pair of electrons on nitrogen atom.
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