The lone pair of nitrogen in benzylamine (C6H5CH2NH2) is not involved in delocalization and remains available for donation. However, in the other compounds provided, the lone pair of nitrogen participates in delocalization, rendering them unavailable for donation, as depicted below.

The most basic compound among the given compounds is benzylamine.
(i) Explain Aldol condensation with example.
(ii) How are the following conversions achieved:
(a) Benzene Benzaldehyde, (b) Ethanoic acid ethanol.

If a random variable \( x \) has the probability distribution 
then \( P(3<x \leq 6) \) is equal to