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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
Symbol and formulae of the reactants are written on....... side fo arrow.
Question # 3
Heating of solid potassium chlorate produces a gas.
Question # 4
The product fo the reaction between zinc and dilute sulphuric acid are.
Question # 5
Thermal decompositionof calcium carbonate produces a gas.
Question # 6
How many oxygen atoms are present in onw molecule of Mg(HCO3)2
Question # 7
During photosynthesis in plants, carbon dioxide CO2 and water react to produce.
Question # 8
When methane is burnt in air, CO2 and.......... are formed.
Question # 9
During a chemical reaction, total mass of the product is equal to the total mass of reactants, this is a statements of.
Question # 10
Exothermic reaction ae those reactions durng which heat is.
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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8th General Science (English Medium) Chapter 6 Important MCQ's
| 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 | Carbon burns in air to release energy along with the formation of. |
A. Carbon dioxide and hydrogen
B. Carbon monoxide and hydrogen
C. Carbon di oxide
D. Carbon dioixe and water
|
| 4 | Fire works is an example of ........... reactions. |
A. Addition
B. Exothermic
C. Endothermic
D. Decomposition
|
| 5 | Substancs whihc take part in a chemical reaction are called. |
A. Products
B. Ractants
C. Elements
D. Compunds
|
| 6 | Law fo conservation of mass was put forward by |
A. Newton
B. Plank's
C. Lavoisier
D. Einstein
|
| 7 | Exothermic reaction ae those reactions durng which heat is. |
A. Given out
B. Remain same
C. Absorbed
D. Used
|
| 8 | Symbol and formulae of the reactants are written on....... side fo arrow. |
A. Left
B. Right
C. Upward
D. Both side
|
| 9 | 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
|
| 10 | When methane is burnt in air, CO2 and.......... are formed. |
A. O2
B. H2O
C. Glucose
D. Energy
|
Test Questions