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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
Thermal decompositionof calcium carbonate produces a gas.
Question # 2
The reaction between calcium oxide and carbon dioxide to form calcium carbonate is an example of.
Question # 3
How many oxygen atoms are present in onw molecule of Mg(HCO3)2
Question # 4
When methane is burnt in air, CO2 and.......... are formed.
Question # 5
Carbon burns in air to release energy along with the formation of.
Question # 6
The product fo the reaction between zinc and dilute sulphuric acid are.
Question # 7
Symbol and formulae of the reactants are written on....... side fo arrow.
Question # 8
During photosynthesis in plants, carbon dioxide CO2 and water react to produce.
Question # 9
Fire works is an example of ........... reactions.
Question # 10
Substancs whihc take part in a chemical reaction are called.
8th General Science English Medium Chapter 6 Test
Here you can prepare 8th General Science English Medium Online MCQ's Test. Click the button for 8th General Science English Medium Chapter 6 100% free full practice test.
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M Mujahid Saleem 18 - Dec - 2024 01 Min 12 Sec 20/20 -
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S Shoaib Junaid 18 - Dec - 2024 01 Min 20 Sec 16/20
8th Chapter 6 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 | During a chemical reaction, total mass of the product is equal to the total mass of reactants, this is a statements of. |
A. Law of conservation of momentum
B. Law of conservation of energy
C. Law of conseration of mass
D. Law of conseration of acceleration
|
| 2 | Symbol and formulae of the reactants are written on....... side fo arrow. |
A. Left
B. Right
C. Upward
D. Both side
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| 3 | During photosynthesis in plants, carbon dioxide CO2 and water react to produce. |
A. Water
B. Energy
C. Glucoe
D. CO2
|
| 4 | Heating of solid potassium chlorate produces a gas. |
A. Chlorine
B. Carbon dioxide
C. Carbon mono oxide
D. Oxygen
|
| 5 | The equation in which the number of atoms of each element on both sides are not equal is called. |
A. Quadratic equation
B. Unbalanced equation
C. Balanced equation
D. Standard equation
|
| 6 | Law fo conservation of mass was put forward by |
A. Newton
B. Plank's
C. Lavoisier
D. Einstein
|
| 7 | Fire works is an example of ........... reactions. |
A. Addition
B. Exothermic
C. Endothermic
D. Decomposition
|
| 8 | How many oxygen atoms are present in onw molecule of Mg(HCO3)2 |
A. 2
B. 4
C. 6
D. 8
|
| 9 | Law of conservation of mass put forward in. |
A. 1783
B. 1784
C. 1785
D. 1786
|
| 10 | The product fo the reaction between zinc and dilute sulphuric acid are. |
A. Zinc oxide and water
B. Zinc sulphide and water
C. Zinc sulphate and hydrogen
D. Zinc sulphide and hydrogen
|
Test Questions