Question # 1

Low iodine availability in humans causes the disease

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Goiter

Cancer

Tuberculosis

Cholera

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

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Nitrogen cycle.

Carbon cycle

Nitrogen fixation

Water cycle

The contents of sodium in leaf tissus vary from.

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0.01 - 10%

10-15%

12-16 %

Nitrogen occur in the atmosphere as................. molecules.

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Triatomic

Diatomic

Polyatomic

None of these

What type of liquid has abnormal freezing and boiling point.

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Water

Juice

Petrol

Diesel

It is not crystalline form of carbon

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charcoal

graphite

buckyballs

diamond

It is an organic compound

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natural gas

ammonium

water

sodium chlorides

The process which loops the amount of nitrogen constant in air is

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nitrogen fixation

nitrogen cycle

oxidation

photosynthesis

The compounds consisting of Amino acids are called

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carbohydrate

Fast

Proteins

organic compounds

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

If a key is stiff in a lock, rub the end of the key a soft pencil, which types of elements we obtain.

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Graphite

Silver

Gold

Paltinum

The process by which green plants manufacture their food is

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respiration

photosynthesis

oxidation

nitrogen fixation

Which Gas is essential for proteins.

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Sulphur

Hydrogen

Nitrogen

Oxygen

It is an important constituent of DNA and RNA our body

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Iron

Chlorine

Fluorine

Phosphorus

Coke is formed in the absence of..........

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Carbon

Oxygen

Air

Hydrogen

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General Science 9th Class English Medium Chapter 2 Online Test MCQs With Answers

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