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4. Arrange the following in increasing order of their basic strength (aq). i) CHNH,,C,HNH,, NH,,C,H, CH,NH, and (CH3), NH ii) C,H,NH,,(CH, ), NH,(CH, M, N,CH,NH, iii) CH,NH,(CH,), NH,(CH,), N,CH,NH,CH,CH,NH, 2