JAMB - Chemistry (1994 - No. 24)
An anhydride is an oxide of non-mental
which will not dissolve in water
whose solution in water has a pH greater than 7
whose solution in water has a pH less than 7
whose solution in water has a pH of 7
توضیح
Acid anhydrides are the molecules that are capable of forming acidic solutions in water. The meaning of anhydride is the removal of water. Hence their pH will be less than 7.