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ICSE Class X Prelims 2019 : Chemistry (Don Bosco Senior Secondary School, Vaduthala, Kochi, Ernakulam)

7 pages, 100 questions, 90 questions with responses, 182 total responses,    2    0
Tiara Elizabeth
Indian Certificate of Secondary Education (ICSE), New Delhi
10th
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CHEMISTRY SCIENCE Paper -2 ( Two Hours ) Answer 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 answer. Attempt 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 (40 Marks) (Attempt all questions from this section) Question 1 (a) From the list given below. Select the word(s) required to correctly complete blanks (I) to (v) in the following passage. The words from the list are to be used only once. [Ammonia, ammonium, carbonate, carbon dioxide, hydrogen, hydronium, hydroxide, precipitate, salt, water] [5] A solution X turns red litmus blue so it must contain (i) Ions another solution Y turns blue litmus red and hence must contain (ii) ions . When solution X and Y Mixed together the products will be (iii) and (iv) if a piece of magnesium was put Into a solution Y (v) gas would be evolved (b) Name the gas in each of the following (i) The gas produced on reaction of sodium bicarbonate with dil sulphuric acid (ii) The gas produced on reaction of copper sulphide with dil hydrochloric acid (iii) The gas produced when copper reacts with concentrated nitric acid 1 ICSE (Grade : X) | CHEMISTRY (SCIENCE Paper-II) | Pre Board Exam-III [5]

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