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Sottish Shool, Powai ASSESSMENT (2023-2024) Grade: 8 Date: 13.09.2023 Bombap FIRST TERM CHEMISTRY MM: 80 No. of Qs: 5 Time: 2 hours General Instructions: Answers to the given No. of Pgs.: 6 must be written on the papel provided separately. You will allowed to write duringquestions not be the first 15 minutes, on is to be spent the This time of reading the paper. The time given at the head of this to write the:answers. question allowed time the is paper questions from Section Aand Section B Attempt all The intended marks for questions or parts of auestions are given in braCKets | | Questionl. all questions from this section) (Attempt SECTIONA a) Choose the correct answer from the options A, B, C, D i) Which of these will have similar chemical properties but a different set of properties and mass number? A) Isobars B) Elements D) none of these A Potassium atom becomes a Potassium ion when it. A) gains one electron C) loses one electron B) loses one proton D) loses nine electron i) The subatomic particles of an atom include all of the following EXCEPT A)protons C) elements iv) Aluminium oxide is a/an A) acidic B) amphoteric V) vi) D) electrons oxide. C) basic D) neutral Washing soda is the common name for C) Sodium bicarbonate A) Calcium carbonate D) Sodium carbonate B) Calcium bicarbonate How many protons does an Aluminum atom have, if it has atomicnumber of 13 and mass number 27? A) 27 B) 13 vii) physical C) Isotopes ii) B) neutons [10] C) 40 D) 14 An element that does not form anegative ion is : C) Sulphur A)Potassium B) Nitrogen D) Oxygen 1
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