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ICSE Class X Prelims 2021 : Chemistry (Strawberry Fields High School (SFHS), Chandigarh)

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Ennayat Cheema
Strawberry Fields High School (SFHS), Chandigarh
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Chemistry PAPER -1 (THEORY) (Two Hours) (Candidates are allowed additional 15 minutes for only reading the paper. They must not start writing during this time.) ____________________________________________________________________________________________ Answer all questions in Section I and four questions from Section II. All working including rough work should be done on the same sheet as, and adjacent to, the rest of the answer. The intended marks for questions or parts of questions are given in brackets [ ]. A list of useful physical constants is given Avagadro s No = 6.023 1023 SECTION I (40 Marks) Attempt all questions from this Section Question 1 (a) Choose the most appropriate answer. (i) Which of the following is a common characteristic of a covalent compound? A High melting point. B Conducts electricity when it is in the molten state. C Consists of molecules. D Always soluble in water. (ii) Ammonium hydroxide will produce a reddish brown precipitate when added to a solution of : (iii) A CuSO4 B Zn(NO3)2 C FeSO4 D FeCl3 A salt which in solution gives a bluish white precipitate with NaOH solution and a white precipitate with BaCl2 solution is: A B C D CuSO4 FeSO4 Fe2 (SO4)3 CuCl2

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