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CBSE Class 10 Pre Board 2020 : Science - Prelim 2 (Kendriya Vidyalaya (KV) Agra)

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KENDRIYA VIDYALAYA SANGATHAN - AGRA REGION PRE - BOARD EXAMINATION 2019 20 CLASS - X SUBJECT SCIENCE Time : 3 Hours SET-H M. M. : 80 . General Instructions : (i) The question paper comprises of three sections A, B and C. You are to attempt all the sections. (ii) All questions are compulsory. (iii) Internal choice is given in sections A, B and C. (iv) Question number 1 - 14 in section A are 1 mark questions. (v) Question number 15 - 24 in section B are 3 marks questions. These are to be answered in about 50 60 words each. (vi) Question number 25 - 30 in section C are 5 marks questions. These are to be answered in about 80 90 words each. ___________________________________________________________________________ SECTION - A Q. 1 : Fe2O3+ 2Al Al2O3 + 2Fe The above reaction is an example of: a. Combination reaction. b. Double displacement reaction. c. Decomposition reaction. d. Displacement reaction. 1 OR In which of the following compounds OH is the functional group:(A) Butanol (B) Butanone (C) Butanoic acid (D) Butanal _________________________________________________________________________ 1

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