Question # 1

It is not crystalline form of carbon

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charcoal

graphite

buckyballs

diamond

Bucky Ball is teh third form of pure.

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Carbon

Graphite

Magnesium

Diamond

It is an organic compound

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natural gas

ammonium

water

sodium chlorides

Oxygen and nitrogen react to form.

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Nitric Acid

Nitrogen oxide

Nitrogen peroxide

Nitrate

Which gas is slightly soluble in water.

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Neon

Carbon di oxide

Argon

Oxygen

What type of liquid has abnormal freezing and boiling point.

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Water

Juice

Petrol

Diesel

Teh process of converting atompspheric nitrogen to useable from is called.

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Nitrogen cycle.

Carbon cycle

Nitrogen fixation

Water cycle

The sun almost entirely consists to the element

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oxygen

iron

phosphorus

hydrogen

The most common element in the universe is

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oxygen

hydrogen

nitrogen

iron

The percentage of Neon by volume is.

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0.002

0.9

0.02

0.00055

Each day a normal man breathe............ litres of air.

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20,000 to 15,000

10,000 to 15,000

15,000 to 20,000

21,000, to 31,000

The density of ice at o°C is & nbsp

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0.918g/cm3

0.618g/cm3

0.718g/cm3

0.8/8 g/cm3

Iodine .......... 131 is used in treat the........................

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Cancer

Bone growth

Thyroid

Brain tumor

The amout of carbon dioxide int eh air is increased by.

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Photosynthesis

Respiration

Burning

Evaporation

Ice floats on the surface of water due to.

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Higher density

Lower density

Normal density

Very High density

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