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

Question # 1

How many oxygen atoms are present in onw molecule of Mg(HCO3)2

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Question # 2

On the basis of their functions, neurons are of ............. type.

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Two

Three

Four

Five

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Question # 3

The weight of brain of an adult main is.

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1.5 kg

2.0 kg

2.5 kg

3.0 kg

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Question # 4

Scientific study of space by using especially developed technology is called.

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Space invention

Space exploration

Space searching

Space developing

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Question # 5

A force of 1800 N is acting on the surface area of 0.06 m2. The pressure exerted by he force will be.

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3 kPa

30 KPa

300 kPa

3000 kPa

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Question # 6

The organisms upon whihc a redator feeds are called.

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Prey

Carnivores

Herbivores

Producers

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Question # 7

Sodium hydroxide solution in water will

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Turn blue litmus red

Give pink colour with phenolpthalein

Give red colour with methyl orange.

Not affect the phenolphthalein indicator

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Question # 8

A relationship where two species live together closely is called

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Symbiosis

Predation

Competitor

None of these

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Question # 9

To make bioplastic, we use.

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Starch

Glycerol

Distilled water

Starch, Glycerol and distilled water.

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Question # 10

The organism whose cells and plasmids are usually used in genetic engineering are.

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Viruses

Bacteria

Algae

Fungi

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Question # 11

You are different from your brother and sisters This is called

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Adaptation

Variation

Mitosis

Hereditary

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