Question Detail What nucleus of atom contains ? protonselectronselectrons and protonsprotons and neutrons Answer: Option D Similar Questions : 1. Biogas majorly contains ? EthaneMethaneHydrogenCO Answer: Option B 2. Which gas is filled in refrigerators ? ChlorofluorocarbonAcetyleneMethaneButane Answer: Option A 3. Aspirin is acetyl salicylic acidsodium salicylatemethyl salicylateethyl salicylate Answer: Option A 4. Which one is an organic Acid ? SulphuricCitricNitricPhosphoric Answer: Option B 5. What among following is used to produce artificial rain ? copper oxidecarbon monoxidesilver iodidesilver nitrate Answer: Option C Read more from - Chemistry Questions Answers