(a) The 31P and nB NMR spectra of Pr3P BBr3 (Pr = w-propyl) exhibit a 1:1:1 :1 quartet (./...

(a) The 31P and nB NMR spectra of Pr3P BBr3 (Pr = w-propyl) exhibit a 1:1:1 :1 quartet (./ = 150 Hz) and a doublet (J — 150 Hz), respectively. Explain the origin of these signals.

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(b)  Discuss the factors that contribute towards [NH4][PF6] being soluble in water.

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(c)   The ionic compound |AsBr4][AsF6] decomposes to Br2, AsF3 and AsBr3. The proposed pathway is as follows:

Discuss these reactions in terms of redox processes and halide redistributions.