6.Calculate the number of moles of magnesium present in a magnesium ribbon weighing 12 gm. Molar atomic mass of Magnesium is 24 gm/mol. 7.Write postulates of Daltion's atomic theory (at least three).
Important questions for CBSE Class 9 Science are provided here to help students prepare chapter-wise questions of 2, 3 and 4 marks for the upcoming Term 2 Exam. All questions are prepared by the exam ...
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CBSE class 9 study material PDF 2025-26: Download important resources for annual exam preparation
To help Class 9 students score high marks in the Annual Exam 2026, we have compiled complete CBSE Class 9 Study Material 2025-26 including syllabus, deleted topics, NCERT books, NCERT solutions, MCQs, ...
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