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ICSE Class X Prelims 2019 : Chemistry (Goldcrest High, Latur)

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Kausar Hossain
Goldcrest High, Latur
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ON THE WINGS OF EXCELLENCE CYCLE TEST-1 FOR CLASS X (2018-19) SCIENCE PAPER-2 (CHEMISTRY) TIME: 1 HOUR 15 MINUTES F.M: 50 Answer to this paper must be written on the paper provided separately. You will not be allowed to write during the first 10 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. The intended marks for the questions or parts of the questions are given in brackets [ ]. Question 1 (a)Give balanced chemical equations for the conversions A to K (b) Identify A, B, C, J, K. How are the conversions D, E, F, G, H, I carried out? Question-2 (a) Why is pure acetic acid is called as glacial acetic acid? [5] [5] [1] (b) What are Spurious and Denatured Alcohol ? Why is it not used for human consumption [2] (c) Alkenes are more reactive than alkanes [1] (d) Alkenes are known as Olefins [1] (e) A mixture of oxygen and ethyne is used for welding but not a mixture of ethyne and air? [1] CHE/CT-2/2018-19/KSH This question paper consists of 3 printed pages and 1 blank pagePage 1

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