Which of the following lists describes characteristics of a base?
bitter taste, high ph, and caustic
bitter taste, low ph, and slippery
sour taste, high ph, and dissolves metals
sour taste, low ph, and caustic

Bitter taste, high pH, and caustic

Explanation:

Acids are those substances which either donates hydrogen ions when dissolved in water. They have pH ranging from 1 to 6.9.They are They are sour in taste. They dissolve metals to give hydrogen gas.Strong acids are caustic as they burn skin.

Bases are those substances which either donates hydroxide ions when dissolved in water or donates a pair of electrons.  They have pH ranging from 7.1 to 14. They are bitter in taste. They are slippery in nature. Strong bases are caustic as they burn skin.

the answer to this question is 3.