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Arrange the following compounds in incre...

Arrange the following compounds in increasing order of their reactivity in nucleophilic addition reaction. i. Ethanal, Propanal, Propanone, Butanone ii. Benzaldehyde, `p` - Tolualdehyde, `p`-Nitrobenzaldehyde, Ácetophẹnone (Hint: Consider' steric effect and electronic effect).

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i. Buțanone `leq` PropanoneltPropanal ltEthạnal ii. Acetophenone ltp- Tolualdehyde, Benzaldehydeltp- Nitrobenzaldehyde
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All aliphatic amines are more basic than ammonia but due to delocalization of lone pair of electrons of the nitrogen atom on the benzene ring, aniline is a weaker base than ammonia. The basic strength of the substituted anilines, however, depends upon the nature of the substituent. Whereas electron-donating groups tend to increase, electron-withdrawing groups tend to decrease the basic strength. The base strengthening effect of the electron-donating groups and base weakening effect of the electron-withdrawing groups is, however ,more pronounced at p-than at m-position. However, due to ortho effect, o-substituted anilines are weaker bases than anilines regardless of the nature of substituent whether electron-donating or electron-withdrawing. What is the order of basicity of I. p-methylaniline II. m-methylaniline III, aniline IV. o-methylaniline

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