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I [I[e I BiiWI I r Date: 25 /01 /2024 /std: X I iI I I t I I INDIAN EDUCATION SOCIETY Orion (ICSE) ~w Secondary (2023-24) I Marks : 80 Preliminary Examination 1 I I Time : 2 Hours Subject: Chemistry Yo_ u ~ill not be allowed to write during the first 15 minutes. T . . This time is to be spent in reading the question paper_. . he time given at the head of this Paper is the time allowed for writing the answers ----------------------------------------- -------- ------Att~mpt all questions from Section I and any four questions from Section II. The intended marks for questions or parts of questions are given in brackets SECTION I (Attempt all questions.) Question 1: Choose the correct answers to the questions from the given options. (Do not t 15 copy the question, Write the correct answer only.) ) (i) The organic compound which when mixed with ethyl alcohol makes it spurious is: (a) Methanol (b) Methanoic acid (c) Methanal (d) Ethanoic acid Ethanol reacts with sodium to give , t (ii) (a) Sodium ethanoate (b) Sodium ethoxide (c) Sodium propanoate (d) Sodium methoxide The number of C-H bonds in propane molecule are(iii) (a) 6 l (b) 8 (c) 10 (d) 7 (iv) . The colour of universal indicator in water 1s: (a) Red (b) Blue Page 1 of 7
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