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FOoUNDATION'S) MUMBAI MERCHANTS EDUCATIONAL (NAVI ANCHORWALA EDUCATION ACADEMY FIRST PRELIMINARY ASSESSMENT 2023-2024 MARKS: 80 TIME: 2 Hours GRADE: 10 SUBJECT: CHEMISTRY NAME OF THE STUDENT: DATE:08.12.2023 Answers to this paper must be written on the paper provided separately. the first 15 minutes. You will not be allowed to write during This time is to be spent in reading the question paper. writing the answers. time allowed for The time given at the head of this paper is the four questions from Section ll. Atempt all questions from Section I and any questions are given in brackets [] The intended marks for questions or parts of SECTION I(40 Marks) (Attempt allquestions from this section) Question 1 below: a. Choose the correct answer from the options given calcium sulphite: (i) The gas evolved when dil sulphuric acid reacts with a. Hydrogensulphide. b. Carbon dioxide C. Sulphur dioxide. d. Nitrogen dioxide. [15] ( ))Which of the folowing willnot affect the brown colour of bromine solution in carbon tetrachloride? a. CsHo b. C,H2 c.CzH,* d. CaHs nitric (ii) Which of the following substances reacts with cold and dil nitric acid to evolve Oxide? a. Carbon b. Sulphur c. Sodium carbonate d. Copper. (iv) Sodium chloride is preferred for the preparation of HCl over other metal chlorides because: aSodium chloride is crystaline c. It is cheap. b. It is amorphous d. It is an ionic compound 1
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