Question # 1

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

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Nitrogen cycle.

Carbon cycle

Nitrogen fixation

Water cycle

The compounds consisting of Amino acids are called

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carbohydrate

Fast

Proteins

organic compounds

An essential component of haemoglobin

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sodium

Neon

iron

Aluminium

The process which increases the temperature in the temperatureis called

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Photosynthesis

Oxidation

Greenhouse effect

Evaporation

One of the essential part of all living things on the earth

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carbon

nitrogen

hydrogen

oxygen

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

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Cancer

Bone growth

Thyroid

Brain tumor

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

Low iodine availability in humans causes the disease

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Goiter

Cancer

Tuberculosis

Cholera

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

It is not crystalline form of carbon

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charcoal

graphite

buckyballs

diamond

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

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Triatomic

Diatomic

Polyatomic

None of these

The percentage of Neon by volume is.

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0.002

0.9

0.02

0.00055

The body of a young boy contains approximately... litres of water.

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10

25

35

45

What type of liquid has abnormal freezing and boiling point.

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Water

Juice

Petrol

Diesel

The process which increases the amount of carbon dioxide in air is called

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photosynthesis

respiration

oxidation

vaporization

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

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

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Photosynthesis

Respiration

Burning

Evaporation

The sun almost entirely consists to the element

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oxygen

iron

phosphorus

hydrogen

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9th Class General Science Chapter 2 Chemistry and Life English Medium KPK Boards Online Mcqs MCQs With Answers

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