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BISHOP MOORE STD-X VIDYAPITH MAVELIKARA SECOND MODEL EXAMINATION 2023-2024 CHEMISTRY (SCIENCE PAPER-2) Maximum Marks: 80 Time allowed: Two hours Answers to this Paper must be written on the paper provided separately. You willnot be allowed to write during 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 answers. Atempt all questiQns fromSection Aand any four questions from Section B. The intended nmarks for questions or parts of questions are given in brackets J. SECTION A (Attempt all questions from this Section.) Question 1 Choose the correct answers tothe questions from the given options. answers only.) (Do not copy the question, write the correct by Sulphide ore is generally concentrated [1S] (a) Hvdrolytic method (b) Magi ue separaton () Froth floatation (d) calcination The resulting ester when ethyl alcohol and acetic acid are mixed together (ii) (iii) (b) CzHsCOOCHs (6 CH;CO0C,Hs (d) C;H_COOCH; CH;COOCH; (a) placed in four different salt solutions as given below. Which of the solution A strip of copper is will finally turn ( blue ZnNO3)2 (c)( Ca(NO3)2 (d) AgNO3 (a) KNO3 (b) whichis amphoteric in nature metallic oxide Identifythe Barium Oxide (c) Zinc oxide (d) copper(II) oxide Calcium oxide (b) (a)
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