1.

(a) (CH_3)_3Nis basic, but (CF_3)_3 Nis not basic. Explain. (b) Electron affinity of Chlorine is more than fluorine. Explain.

Answer»

SOLUTION :(a) `(CH_3)_3 N ` is basic because there is a lone pair of electrons present on N-atom which is available for sharing with a proton.
Trigonal pyramidal structure, In `(CF_3)_3N`the electron density on N atom is very much decrease due to - I effect of `CF_3`groups. Hence, lone pair of electron is not available for sharing with proton and `CF_3`groups are bulky and causes steric HINDRANCE.

(b) Chlorine has more electron affinity than fluorine. This is because of more electron-electron repulsion in compact 2p subshell of fluorine as COMPARED to 3p subshell of chlorine.
`Cl_17 ,1S^(2) 2s^(2) 2p^(6) 3s^(2) 3p^(5)`
`F_9 , 1s^(2) 2s^(2) 2p^(5)`


Discussion

No Comment Found

Related InterviewSolutions