Question

at what times should a ph electrode be submerged in a solution? select one or more: when being transferred from storage to a flask when monitoring a reaction in a beaker when being stored in a storage cabinet when not being used between measurements

Explanation:

A pH - electrode should be submerged when measuring the pH of a solution, such as when monitoring a reaction in a beaker. It should not be submerged when being transferred or stored in a dry cabinet. Also, it is usually kept in a storage solution when not in use between measurements, but not submerged in random solutions at that time.

Answer:

B. When monitoring a reaction in a beaker