Determine if a list of biologically important chemical groups acts as an acid, base, or neutral? - Hydroxyl - Carbonyl - Carboxyl - Amino - Sulfhydryl - Phosphate - Methyl

1 Answer
Sep 14, 2015

Hydroxyl - neutral but can act as basic/acidic
Carbonyl - neutral
Carboxyl - acidic
Amino - basic
Sulfhydryl - neutral
Phosphate - basic
Methyl - neutral
see explainat

Explanation:

Hydroxyl - neutral but can act as basic/acidic depending on the side chain
usually they are the one which exhibit polar compound properties but shows basic properties if joined to electron acceptor but if joined to a group which withdraws electrons density it can act as acidic as well.

Amino - basic
As it has the tendency to gain proton it is basic.

Phosphate - basic
it is formed of #H_3 PO_4# acid thus it is a strong base. it is used to create phosphate buffer which maintains a pH of 8

Carbonyl - neutral
Sulfhydryl - neutral
Methyl - neutral

these three groups are neutral group as they themselves are not taking part in the reaction but contributes to other functional part characteristics. they are part of large number of side chain groups.

Carboxyl - acidic

Has the tendency to donate proton it is acidic.