A) \[NH_{2}^{-}>O{{H}^{-}}>R{{O}^{-}}>RCO{{O}^{-}}\]
B) \[NH_{2}^{-}>R{{O}^{-}}>O{{H}^{-}}>RCO{{O}^{-}}\]
C) \[RCO{{O}^{-}}>NH_{2}^{-}>R{{O}^{-}}>O{{H}^{-}}\]
D) \[RCO{{O}^{-}}>R{{O}^{-}}>NH_{2}^{-}>O{{H}^{-}}\]
Correct Answer: B
Solution :
The order of acidic strength of the given compounds is \[RCOOH>{{H}_{2}}O>ROH>N{{H}_{3}}\] Stronger the conjugated acid, weaker is its base. Hence, the order of basicity of given bases is \[NH_{2}^{-}>R{{O}^{-}}>{{H}_{2}}O>ROH>N{{H}_{3}}\]
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