Which of the following ions is commonly used as a reference electrode? (2020)
Practice Questions
Q1
Which of the following ions is commonly used as a reference electrode? (2020)
Ag+
Cl-
K+
Hg2+
Questions & Step-by-Step Solutions
Which of the following ions is commonly used as a reference electrode? (2020)
Step 1: Understand what a reference electrode is. A reference electrode is a stable electrode used to measure the potential of another electrode.
Step 2: Learn about common types of reference electrodes. There are several types, but some of the most common include the silver/silver chloride electrode and the calomel electrode.
Step 3: Identify the ions used in these electrodes. The silver/silver chloride electrode uses silver ions (Ag+) and chloride ions (Cl-).
Step 4: Recognize that silver ions (Ag+) are specifically mentioned as commonly used in reference electrodes.
Step 5: Conclude that the answer to the question is silver ions (Ag+), as they are widely used in reference electrodes.
