JAMB - Chemistry (1993 - No. 10)
Argon is used in gas-filled electric lamp because it helps to?
prevent the reduction of the lamp fillaments
prevent oxidation of the lamp fillaments
make the lamp fillament glow brightly
keep the atmosphere in the lamp inert
Explanation
Argon is used to fill incandescent and fluorescent light bulbs to prevent oxygen from corroding the hot filament.