MCQ - CBSE Class 9 Science Which of the two elements given below would be chemically more reactive : 09/28/2023 Ajit kumar 81 Views 0 Comments Read more
MCQ - CBSE Class 9 Science Name the scientist who discovered neutrons. 09/28/2023 Ajit kumar 130 Views 0 Comments Read more
MCQ - CBSE Class 9 Science Name the particles which determine the mass of an atom. 09/28/2023 Ajit kumar 89 Views 0 Comments Read more
MCQ - CBSE Class 9 Science Explain with examples (i) Atomic number, (ii) Mass number, (iii) Isotopes and (iv) Isobars. Give any two uses of isotopes. 09/28/2023 Ajit kumar 104 Views 0 Comments Read more
MCQ - CBSE Class 9 Science Define valency by taking examples of silicon and oxygen. 09/28/2023 Ajit kumar 104 Views 0 Comments Read more
MCQ - CBSE Class 9 Science What are the limitations of Rutherford’s nuclear model of the atom ? 09/28/2023 Ajit kumar 104 Views 0 Comments Read more
MCQ - CBSE Class 9 Science What is the limitation of J.J. Thomson’s model of the atom? 09/28/2023 Ajit kumar 86 Views 0 Comments Read more
MCQ - CBSE Class 9 Science Name the three subatomic particles of an atom. 09/28/2023 Ajit kumar 71 Views 0 Comments Read more
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 93 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 94 Views 0 Comments Read more