Question Detail Homo nuclear molecules contain ? polar bondcovalent bondionic bondcoordinate bond Answer: Option B Similar Questions : 1. Mass number of a nucleus is : the sum of the number of protons and neutrons present in the nucleusalways more than the atomic weightalways less than its atomic numberNone of above Answer: Option A 2. What is used to avoid melting of ice ? GelatineButaneMethaneAny acid Answer: Option A 3. Natural rubber is a polymer derived from ? ethylenepropyleneisoprenebutadiene Answer: Option C 4. The chemical used as a fixer in photography is ? sodium thiosulphatesodium sulphateboraxammonium sulphate Answer: Option A 5. Which gas is filled in refrigerators ? ChlorofluorocarbonAcetyleneMethaneButane Answer: Option A Read more from - Chemistry Questions Answers