Which one of the following gases produces a red light when electricity flows through it ?
[amp_mcq option1=”Helium” option2=”Argon” option3=”Nitrogen” option4=”Neon” correct=”option4″]
This question was previously asked in
UPSC CAPF – 2020
Which one of the following gases produces a red light when electricity flows through it ?
[amp_mcq option1=”Helium” option2=”Argon” option3=”Nitrogen” option4=”Neon” correct=”option4″]