Step-by-step explanation:
Bases are the species or substances whose pH is more than 7 and they tend to turn red litmus into blue. On the other hand, acids are the species or substances whose pH is less than 7 and they tend to turn blue litmus into red.
It is known that bases are bitter in taste and they have slippery texture. Bases release hydroxide ions (
) upon dissociation in a solution. Whereas acids are sour in taste and release hydrogen ions (
or
) upon dissociation in a solution.
Thus, we can conclude that out of the given options following are characteristics of bases.
- contain hydroxide ion or produce it in a solution.