A lab activity requires students to insert potassium hydroxide (KOH) pellets into a narrow tube to absorb carbon dioxide (CO2). Pellets of KOH are very caustic and alkaline. Which is the safest way to put the pellets into the tube?
f Pour the pellets directly from the supply bottle.
g Use forceps to transfer the pellets.
h Handle the pellets with paper towels.
j Use fingers to transfer the pellets.