Question # 1

What is the percentage of carbon in anthracite?

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60%

70%

80%

90%

Which is Pentahydroxy aldehydes of the following?

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Starch

Glucose

Fructose

Sucrose

Building and Monuments lose their beauty and shine due to

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U.V radiations

Chlorofluoro carbons

Acid rain

IR radiations.

The colour of litmus in a strong basic solution become.

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Yellow

Blue

Red

Colourless

Which types of reaction speed up gradually?

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Irreversible reactions

Reversibel reactions

Forward reactions

Decomposition reactions.

The percentage of water in human body is.

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40%

50%

60%

70%

Which one of the following is used as jet fuel.

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Kerosene oil

Lubricating oil

Fuel oil

Diesel oil

Which salt is used for the manufacture of detergents, pulp and paper?

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NaCl

Na₂CO₃

Na₂SiO₃

NaCl

Which of the following is the hardest coal?

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Pear

Lignite

Bituminous

Anthracite

The lives of aquatic plants and animals are indirectly related to concentration of dissolved ------ in water:

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hydrogen

oxygen

chlorine

nitrogen

Acids have taste

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Bitter

Seetish

Sour

Saltish

Who put forward '' the vital force theory''?

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Kolbe

Wohler

Berzellius

Jabir - Bin - Hayan

Vitamin are accessory Growth factors they play important role in our body like.

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Provide energy to the body.

Insulate our body from electric shock

Build brain cells

Regulate metabolism

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