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ICSE Class X Prelims 2023 : Chemistry (Bhaktivedanta Swami Mission School (BSMS), Mumbai) Prelim / Pre-Board 1

8 pages, 72 questions, 1 questions with responses, 1 total responses,    0    0
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Bhaktivedanta Swami Mission School PRE-PRELIMINARY EXAMINATION - (2022-23) SUBJECT: CHEMISTRY Std: X (Paper -2) Marks: 80 Time:2Hr. Date: 02/12/2022 Answers to this Paper must be written on the paper provided separately. You will not be allowed to write during the first 15 mimutes. 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. Section I is compulsory. Attempt any four questionsfrom Section . lhe intended marks for questions or parts ofquestions are given in brackets [ ]. SECTIONI(40Marks) Attempt all questions from this Section Question 1 Choose one correct answer to the questions from the ) The main components of brass are: (a) Copper and Zinc" (c) Copper and tin given options. [15 (b) Copper and lead (d) Copper and iron The drying agent used to dry NH3 is: (a) POs (c) CaClh (b) conc. HSO4 (d)Ca0' (i) The general formula of alkynes is: (a)CaH2n-2 (b) C.Ha-2 (c) CHza (iv) A polar covalent compoundis (a) Methane (v) (d) CaHa 20 (b)Ammonia (c) Nitrogen A strong electrolyte from the following is: (a) Acetic acid (c) Ammonium hydroxide (b) Oxalic acid d) Sodium hydroxide" Page 1 of 8 (d) Chlorine

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