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VIBGYOR HIGH First Term Examination AY 2020-2021 CHEMISTRY SCIENCE PAPER-2 Grade: IX Max. Marks: 80 Date: 18/09/2020 Time Allowed: 2 hours INSTRUCTIONS: Section A is compulsory. Attempt any four questions from Section B The intended marks for the questions or parts of questions are given in brackets [ ] This question paper contains 8 printed pages. _________________________________________________________________________ [40] Section I (40 marks) Attempt all questions from this section Q. 1 (a) Fill in the blanks with the choices given in brackets: i. [5] _________is the chemical formula of green vitriol. [FeSO4.7H2O / Ca (NO3)2.4H2O] ii. At 0 K the volume of a gas is theoretically _________. [0 cc,273 cc] iii. The radicals of zinc carbonate are _________ and ________. [ Zn2+ and CO3-2/ Zn1+ and CO3-1}. iv. With the rise in temperature the solubility of sodium chloride in water_________. [increases sharply/increases only a little] v. (b) 1 cm3 of a gas is equal to _________. [1000 ml l /1 ml] Choose the most appropriate answer for each of the following: i. The formula of ferric sulphate is A. FeSO4 1 [5]
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