Reason : The atom is visualized as a pudding of positive charge with electrons (raisins) embedded in it. Assertion : Thomson’s atomic model is known as ‘raisin pudding’ model. Reason : In an anion, the number of protons in the nucleus is less than the number of electrons moving around it. Assertion : Anions are larger in size than the parent atom. Reason : Cathode rays consist of negatively charged particles known as electrons. Assertion : Cathode rays get deflected towards the positive plate of electric field. (d) Assertion is false, but reason is true. (c) Assertion is true, but reason is false. (b) Both assertion and reason are true, but reason is not the correct explanation of the assertion. (a) Both assertion and reason are true, and reason is correct explanation of the assertion. Choose the correct answer out of the following choices. Prepared by teachers of the best CBSE schools in India.įor question numbers 51-60, a statement of assertion followed by a statement of reason is given. This test paper with questions and answers for Class 9 will be very useful for exams and help you to score good marks Class 9 Science Worksheet for Chapter 4 Structure of the AtomĬBSE Class 9 Chemistry Worksheet - Structure Of Atom - Practice worksheets for CBSE students. Students should also download free pdf of Class 9 Science Worksheets prepared by school teachers as per the latest NCERT, CBSE, KVS books and syllabus issued this academic year and solve important problems with solutions on daily basis to get more score in school exams and tests Worksheet for Class 9 Science Chapter 4 Structure of the AtomĬlass 9 Science students should refer to the following printable worksheet in Pdf for Chapter 4 Structure of the Atom in Class 9. Class 9 students should practice questions and answers given here for Science in Class 9 which will help them to improve your knowledge of all important chapters and its topics. Students and teachers of Class 9 Science can get free printable Worksheets for Class 9 Science Chapter 4 Structure of the Atom in PDF format prepared as per the latest syllabus and examination pattern in your schools. Read and download free pdf of CBSE Class 9 Chemistry Structure Of Atom Worksheet Set A.
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