The C-O-H bond angle in alcohols is closest to A) 180 degree B) 90 degree. C) 12

Question

The C-O-H bond angle in alcohols is closest to A) 180 degree B) 90 degree. C) 120 degree. D) 109.5 degree. Which of the following is most reactive with HBr? A) (CH_3)_3COH B) CH_3CH_2OH C) CH_3OH D) (CH_3)_2CHOH If the compound below containing three typo of alcohols were exposed to ONLY 1 equivalent of HCl, what major product would you expect? Identify the leaving group in the following reaction. CH_3CH_2Br + NaHS CH_3CH_2SH + NaBr A) CH_3CH_2Br B) CH_2OH C) HS D) Br Which of the following cannot act as a nucleophile? A) H_2O B) I^- C) NH_3 D) CH_4

Explanation / Answer

Q22.

Oxygen is bonded between two species, carbon and hydrogen

Oxygen has a valence of 6 electrons, meaning it looks for 2 extra electrons

this is achieved via single bonds

Note that the oxygen is bonded with 2 electrons + 2 electrons, so 4 electrnos are left alone

Those are called "lone pairs"

Those 2 lone pairs will reppeal Carbon branch and Hdyrogen

This is approx 105 - 109 °

the nearest answer is 109.5°

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