MCQ - CBSE Class 9 Science Name the international organisation which approves the names given to the elements. Write the symbol of tungsten. 09/28/2023 Ajit kumar 74 Views 0 Comments Read more
MCQ - CBSE Class 9 Science Write the names of the compounds represented by the following formulae: 09/28/2023 Ajit kumar 75 Views 0 Comments Read more
MCQ - CBSE Class 9 Science (a) Define the following : (b) Calculate the mass of the following: 09/28/2023 Ajit kumar 72 Views 0 Comments Read more
MCQ - CBSE Class 9 Science What is the law of constant proportions ? Explain with the help of an example. 09/28/2023 Ajit kumar 94 Views 0 Comments Read more
MCQ - CBSE Class 9 Science State law of constant proportion. 09/28/2023 Ajit kumar 93 Views 0 Comments Read more
MCQ - CBSE Class 9 Science What is meant by the following? 09/28/2023 Ajit kumar 74 Views 0 Comments Read more
MCQ - CBSE Class 9 Science Helium atom has 2 electrons in its valence shell but its valency is not 2. Explain. 09/28/2023 Ajit kumar 123 Views 0 Comments Read more
MCQ - CBSE Class 9 Science Write the atomicity of the following: 09/28/2023 Ajit kumar 123 Views 0 Comments Read more
MCQ - CBSE Class 9 Science Name the anion and cation which constitute the molecule of aluminium oxide. 09/28/2023 Ajit kumar 82 Views 0 Comments Read more
MCQ - CBSE Class 9 Science What is meant by the term chemical formula ? 09/28/2023 Ajit kumar 84 Views 0 Comments Read more