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ICSE Class X Prelims 2023 : Chemistry (Chatrabhuj Narsee Memorial School (CNM), Mumbai)

7 pages, 95 questions, 20 questions with responses, 20 total responses,    0    0
Indian Certificate of Secondary Education (ICSE), New Delhi
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C.NM.&N.D.PAREKH SCHOOL Krcelenee in Vaueatien Shri Vile Parle Kelavani Mandal's C.N.M. School & N.D. Parekh Pre-Primary School CLASS DATE Preliminary Examination 2022 23 TIME XX 12.01.2022 CHEMISTRY 2 hours MAX MARKS 80 Number of printed pages - 7 Answers to this paper must be written on the paper provided separately. You will not be allowed to write during the first 15 minutes. This time is to be spent in reading the question paper. The time given at the head of this paper is the time allowed for writing the answers. This paper comprises two sections: Section A and Section B Section A is compulsory Attempt any four questionsfrom Section B. The intended marks for questions or parts of questions are given in brackels [ } SECTION - A (Attempt all questions from this section.) Question 1 Choose the correct answers to the questions from the given option: [1S] Drying agent used to dry ammonia gas: i) (a) Concentrated Sulphuric acid (b) Calcium oxide (c) Phosphorus pentaoxide (d) Fused calcium chloride With reference to the variation of properties in the periodic table, which of the following statements is generally true? (a) Atomic size increases from left to right across a period ii) (b) lonization potential increases from left to right across a period (c) Electron affinity increases going down a group (d) Electronegativity increases going down a group Brass is an alloy of: ii) (a) Copper and tin (6) Copper and zinc (c) Zinc and lead (d) Lead and tin Std X-Chemistry Preliminary Examination 2022-2023 Page 1 of 7

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