MCQ - CBSE Class 9 Science What do you think would be the observation if the a-particle scattering experiment is carried out using a foil of a metal other than gold ? 09/28/2023 Ajit kumar 89 Views 0 Comments Read more
MCQ - CBSE Class 9 Science If an atom contains one electron and one proton, will it carry any charge or not ? 09/28/2023 Ajit kumar 88 Views 0 Comments Read more
MCQ - CBSE Class 9 Science Multiple Choice Questions 09/28/2023 Ajit kumar 72 Views 0 Comments Read more
MCQ - CBSE Class 9 Science What is meant by atomicity? How many different types of molecules are known on the basis of atomicity ? 09/28/2023 Ajit kumar 99 Views 0 Comments Read more
MCQ - CBSE Class 9 Science Chlorine atom is electically neutral but chloride is a (AI-2013) charged ion. Explain. 09/28/2023 Ajit kumar 68 Views 0 Comments Read more
MCQ - CBSE Class 9 Science Give two examples to show that, law of conservation of mass applies to physical changes also. 09/28/2023 Ajit kumar 54 Views 0 Comments Read more
MCQ - CBSE Class 9 Science What formed the basis for John Dalton to formulate Dalton’s atomic theory ? 09/28/2023 Ajit kumar 59 Views 0 Comments Read more
MCQ - CBSE Class 9 Science The relative atomic mass of oxygen atom is 16. Explain its meaning. 09/28/2023 Ajit kumar 98 Views 0 Comments Read more
MCQ - CBSE Class 9 Science Givé one relevant reason why scientists chose 1/16 of the mass of an atom of naturally occuring oxygen as the atomic mass unit. 09/28/2023 Ajit kumar 77 Views 0 Comments Read more