Q: 78 (CDS-II/2024)Which one among the following statements forthe gases mentioned below is not correct?Hydrogen has 3 isotopes.Helium is a commonly used gas in electric bulbs.Oxygen is used to burn fuel in rocket engines in spacecraft.Nitrogen can be used in gaseous form to replace air in food packaging.question_subject: General Knowledgequestion_exam: CDS-IIExplanationHelium is used in balloons and for cooling, but not commonly in electric bulbs; argon is typically used in bulbs. Please login to bookmark this question