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8th Class General Science Chapter 6 Online Test
8th Class English Medium Subjects
8th Class Urdu Medium Subjects
MCQ's Test For Chapter 6 "General Science 8th Class English Medium Chapter 6 Online Test"
Try The MCQ's Test For Chapter 6 "General Science 8th Class English Medium Chapter 6 Online Test"
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Total Questions10
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Time Allowed10
General Science 8th Class English Medium Chapter 6 Online Test
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Question # 1
Law of conservation of mass put forward in.
Question # 2
The equation in which the number of atoms of each element on both sides are not equal is called.
Question # 3
The product fo the reaction between zinc and dilute sulphuric acid are.
Question # 4
Thermal decompositionof calcium carbonate produces a gas.
Question # 5
During a chemical reaction, total mass of the product is equal to the total mass of reactants, this is a statements of.
Question # 6
During photosynthesis in plants, carbon dioxide CO2 and water react to produce.
Question # 7
The chemicla reaction during which a compound splits up into two or more simple substanes, is called.
Question # 8
Symbol and formulae of the reactants are written on....... side fo arrow.
Question # 9
Carbon burns in air to release energy along with the formation of.
Question # 10
How many oxygen atoms are present in onw molecule of Mg(HCO3)2
8th General Science English Medium Chapter 6 Test
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F Farhan Jutt 16 - Jan - 2025 00 Min 36 Sec 20/20 -
M Mujahid Saleem 18 - Dec - 2024 01 Min 12 Sec 20/20 -
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K Kousar Tasleem 18 - Dec - 2024 00 Min 59 Sec 16/20 -
S Shoaib Junaid 18 - Dec - 2024 01 Min 20 Sec 16/20
| Sr.# | Question | Answer |
|---|---|---|
| 1 | Heating of solid potassium chlorate produces a gas. |
A. Chlorine
B. Carbon dioxide
C. Carbon mono oxide
D. Oxygen
|
| 2 | The chemicla reaction during which a compound splits up into two or more simple substanes, is called. |
A. Additon reaction
B. Decomposition
C. Replacement reaction
D. Balanced reaction
|
| 3 | Symbol and formulae of the reactants are written on....... side fo arrow. |
A. Left
B. Right
C. Upward
D. Both side
|
| 4 | How many oxygen atoms are present in onw molecule of Mg(HCO3)2 |
A. 2
B. 4
C. 6
D. 8
|
| 5 | During photosynthesis in plants, carbon dioxide CO2 and water react to produce. |
A. Water
B. Energy
C. Glucoe
D. CO2
|
| 6 | Law fo conservation of mass was put forward by |
A. Newton
B. Plank's
C. Lavoisier
D. Einstein
|
| 7 | Substancs whihc take part in a chemical reaction are called. |
A. Products
B. Ractants
C. Elements
D. Compunds
|
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