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KAPOL VIDYANIDHI INTERNATIONAL SCHOOL(ICSE) TEMPLE OF KNOWLEDGE 1-03-21 Third Terminal Examination CHEMISTRY STD:IX Dur: 1hr15min. Marks: 40 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. Time given at the head of this paper is the time allowed for writing the answers. Section I is compulsory. Attempt any four questions from Section II. The intended marks for questions or parts of questions are given in the bracket [] SECTION I (40 MARKS) Question 1: 40 Marks VIVA SECTION II (40 MARKS) (Attempt any four questions from this section) a] Question 2: Answer the following pertaining to laboratory preparation of hydrogen gas: 1. Name the reactants used. 2. Give balanced chemical equation for formation of hydrogen gas. 3. State one precautionary measure to be taken in laboratory during preparation of gas. 4. Convenient method of collection of gas. 5. Granulated zinc is preferred to metallic zinc in the preparation of gas using dilute acid. [5] [5] b] 1
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