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General Science 8th Class English Medium Online Test MCQs With Answers

Question # 1

Fire works is an example of ........... reactions.

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Addition

Exothermic

Endothermic

Decomposition

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Question # 2

Energy of ............ is trapped as chemicla energy by producers.

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Moon

Atom

Sun

Earth

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Question # 3

The equation in which the number of atoms of each element on both sides are not equal is called.

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Quadratic equation

Unbalanced equation

Balanced equation

Standard equation

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Question # 4

The colour of hottest star is

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Red

Yellow

Blue

White

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Question # 5

Hydrogen and nitogen are used for teh manufacturing of.

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Benaspati ghee

Oxygen cylinder

Hydrogen flame

Urea

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Question # 6

During a chemical reaction, total mass of the product is equal to the total mass of reactants, this is a statements of.

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Law of conservation of momentum

Law of conservation of energy

Law of conseration of mass

Law of conseration of acceleration

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Question # 7

An alkali metal

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Question # 8

Metals are found in.................. state at room temperatures.

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Gas

Solid

Liquid

None of these

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Question # 9

The improvement in the nutritional quality of edible plants is also one of the advancement of geneti.

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Engineering

Development

Life

Modification

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Question # 10

Speed of light is denoted by.

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Question # 11

The pole of spherical mirror is also called.

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Principal axis

Focus

Vertex

Focal leangth

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