In the following compounds,the decreasing ord | vedclass

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(C) The basic strength of amines in the gaseous phase or non-polar solvents is determined by the inductive effect ($+I$ effect) of the alkyl groups at

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$(C_2H_5)_2NH > C_2H_5NH_2 > NH_3$

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(C) The basic strength of amines in the gaseous phase or non-polar solvents is determined by the inductive effect ($+I$ effect) of the alkyl groups attached to the nitrogen atom.As the number of alkyl groups increases,the electron density on the nitrogen atom increases due to the $+I$ effect,making the lone pair more available for donation.Therefore,the order of basic strength is $(C_2H_5)_2NH > C_2H_5NH_2 > NH_3$.

In the following compounds,the decreasing order of basic strength will be:

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