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CBSE Class 10 Board Exam 2022 : Biology

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www.cbse.online To get 30 Sample Papers with full solution whatsapp at 89056 29969 Page 10 Sample Paper 2 CBSE Science Class 10 Sample Paper 2 CLASS X (2021-22) Term 2 SCIENCE (CODE 086) Time: 2 Hours Max. Marks: 40 General Instructions: 1. All questions are compulsory. 2. The question paper has three sections and 15 questions. All questions are compulsory. 3. Section A has 7 questions of 2 marks each; Section B has 6 questions of 3 marks each; and Section C has 2 case based questions of 4 marks each. 4. Internal choices have been provided in some questions. A student has to attempt only one of the alternatives in such questions. Section A 1. Answer the following question : (a) Why are certain compounds called hydrocarbons? Write the general formula for homologous series of alkanes, alkenes and allkeynes. (b) Write the name of the reaction that converts alkenes into alkanes and also write a chemical equation to show the necessary conditions for the reaction to occur. 2. (a) State Modern Periodic Law. (b) Why is position assigned to hydrogen in Periodic Table considered anomalous ? 3. (a) Trace the path of sperms from where they are produced in human body to the exterior. (b) Write the functions of secretions of prostate gland and seminal vesicles in humans. 4. In the diagram of human male reproductive system given below : (a) Label parts A and B. (b) Name the hormone produced by organ X . What is the role of this hormone in the human male? 5. A coil of insulated wire is connected to a galvanometer as show in figure. What would be seen if a bar magnet with its south pole towards one face of the coil is : (a) moved quickly towards it ? (b) moved quickly away from it ? o Click Here To Purchase Hard Books of CBSE Online Sample Papers. 20 Sample Paper in Each Subject and Rs 590/- For 4 Subjects

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