General Science Chemistry MCQ
General Science Chemistry MCQ (Objective Multiple Choice) General Knowledge Questions & Answers for SSC-CGL, UPPSC, UPSC, NDA, CDS and UPSC Civil Services Prelims Examinations 1. The inert gas used as beacon light is: [A] Kr[B] Ar[C] He[D] Ne Show Answer [D] Ne Notes: Neon is used in neon discharge lamps and advertising signs because the … Read more