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General Science 7th Class English Medium Online Test MCQs With Answers

Question # 1

Zince oxide is ............... solid substances.

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Red

White

Yellow

Blue

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Question # 2

The average energy due to movement of molecules in a substances is called.

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Potenital energy

Electric energy

Kinetic energy

Chemical energy

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Question # 3

The mineral which help pant in production of Carbohydrates and fat is.

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Nitrogen

Magnesium

Oxygen

Carbon

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Question # 4

The wavelength of red colour is.

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700 nm

800 nm

900 nm

600 nm

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Question # 5

A pigment in the skin that protcts harmful effects of sunlight.

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Haemoglobin

Melanin

Lysozyme

Lymphocyte

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Question # 6

Which one of the following statements is correct.

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1 m = 1000 km

m/s is the unit of displacement.

N is the unit of force

1 h = 60 s

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Question # 7

Products of anaerobc respiration in yeasts are .......... along with energy.

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Carbon dioxide and water

Ethanol and carbon dioxide

Oxygen and water

Lactic acid and water

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Question # 8

Oxygen and .... are the products of photosynthesis.

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Water

Carbon di oxide

Glucose

Chlorophyll

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Question # 9

Which of the followig features of a wave is the number of waves that pass by each second.

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Loudness

Amplitude

Frequncy

Wave speed

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Question # 10

Components of binary solutions are.

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Question # 11

One gram of glucose produce abut.............. calories of energy .

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3600

3700

3800

3900

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