Which option contains only TRUE statements?
(i) Electron withdrawal stabilizes the trichloroacetate ion relative to acetate.
(ii) In a simple π-donation model, donation from oxygen to boron can shorten a B–O bond in B(OC₂H₅)₃.
(iii) PF₃ is trigonal planar because phosphorus has no lone pair.

Question

Which option contains only TRUE statements?

(i) Electron withdrawal stabilizes the trichloroacetate ion relative to acetate.

(ii) In a simple π-donation model, donation from oxygen to boron can shorten a B–O bond in B(OC₂H₅)₃.

(iii) PF₃ is trigonal planar because phosphorus has no lone pair.

TestHub · Accepted Answer

The −I effect of chlorine stabilizes the conjugate base, increasing acid strength. Oxygen-to-boron donation can add partial π character. PF₃ has three bonds and a phosphorus lone pair, so it is trigonal pyramidal; (iii) is false.

Chemistry - CHEMICAL BONDING Question with Solution | TestHub

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