MCQ - CBSE Class 9 Science Give a brief account of the development of the presently accepted model of atom with the contributions made by different scientists. Write two features of this atomic model. 09/29/2023 Ajit kumar 70 Views 0 Comments Read more
MCQ - CBSE Class 9 Science Answer the following in one line or one word: 09/29/2023 Ajit kumar 90 Views 0 Comments Read more
MCQ - CBSE Class 9 Science Give the salient features of Rutherford’s Nuclear Model of atom. 09/29/2023 Ajit kumar 98 Views 0 Comments Read more
MCQ - CBSE Class 9 Science Give a reason to explain why : 09/29/2023 Ajit kumar 76 Views 0 Comments Read more
MCQ - CBSE Class 9 Science Give reasons for the following: 09/29/2023 Ajit kumar 69 Views 0 Comments Read more
MCQ - CBSE Class 9 Science Write five applications of isotopes in various fields. 09/29/2023 Ajit kumar 87 Views 0 Comments Read more
MCQ - CBSE Class 9 Science Write the conclusions drawn by Rutherford for the following observing during his a-scattering experiment: 09/29/2023 Ajit kumar 81 Views 0 Comments Read more
MCQ - CBSE Class 9 Science Define the term valency. How valency is different from valence electrons? Find the valency of oxygen and fluorine. 09/29/2023 Ajit kumar 95 Views 0 Comments Read more
MCQ - CBSE Class 9 Science Why did Rutherford choose gold and not any other lighter element (such as aluminium) for his experiment? Explain your answer giving two reasons. 09/29/2023 Ajit kumar 57 Views 0 Comments Read more
MCQ - CBSE Class 9 Science (a) Write two drawbacks of Rutherford’s model of an atom. (b) State Bohr’s postulates to overcome the drawbacks of Rutherford’s model. 09/29/2023 Ajit kumar 89 Views 0 Comments Read more