Question Detail Who proposed first atomic theory ? E.RutherfordDe BroglieJohn DaltonD.I.Mendeleef Answer: Option C Ad Similar Questions : 1. Ozone is : Non-magneticParamagneticFerromagneticDiamagnetic Answer: Option D 2. Acids taste SourSweetMay be bothNone of both Answer: Option A 3. The isotope atoms differ in ? number of neutronsatomic numbernumber of electronsatomic weight Answer: Option AExplanation:Important to note that isotope atoms have same atomic number. 4. Conduction band electrons have more mobility than holes because they are experience collision more frequentlyexperience collision less frequentlyhave negative chargeneed less energy to move them Answer: Option B 5. What is the hardest form of carbon ? cokegraphitecharcoaldiamond Answer: Option D Read more from - Chemistry Questions Answers