Question Detail The most abundant rare gas in the atmosphere is ? He NeAr Xe Answer: Option C Ad Similar Questions : 1. Acid rain is due to air pollution by ? Carbon dioxideCarbon monoxideMethaneNitrous oxide and Sulphur dioxide Answer: Option D 2. pH of water is 5678 Answer: Option C 3. Enzymes are Fatty acidsCarbohydratesNucleic acidsProteins Answer: Option D 4. The term PVC used in the plastic industry stands for polyvinyl chloridepolyvinyl carbobatephosphor vanadiu chloridephosphavinyl chloride Answer: Option A 5. The ejection of electrons when a metal surface is irradiated is known as Black body radiationPhotoelectric effectZeeman effectAtomic spectrum Answer: Option B Read more from - Chemistry Questions Answers