Question

The compound lithium tetrahydridoaluminate(III), LiAIH., is a useful reducing agent. It behaves in a
similar fashion to NaBH.. Carbonyl compounds and carboxylic acids are reduced to alcohols.
However, LiAIH, also reduces water in a violent reaction so that it must be used in an organic
solvent.
Which one of the following can be reduced by LiAIH, to a primary alcohol?
A
B
O-H
CH;
с
CH;
0
D
(TC

Answer 1

Answer:

H30+ is acid water, the strongest acid that can exist in water. It can serve to bring the pH back to neutral as in the case with lithium aluminum hydride which you mentioned. Or may be used as an acid catalyst, for example in hydrolysis, or in a vast number of other organic reactions, just to name a few you have: electrophilic addition of alkenes and alkynes, the formation of hemiacetals and acetals, esterification and transesterification reactions, etc.