Question # 1

Guldberg and waage out forward law of mass action in:

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1889

1879

1869

1859

Which is simplest alkane?

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CH₄

C₂H₈

C₂H₂

C₂H₄

The color of Fe(OH)₂ ppt is.

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White

Brown

Muddy green

Blue

Percentage of carbon in peat is.

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50%

60%

70%

80%

Which one is a pentahydroxy ketone?

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sucrose

glucose

fructose

lactose

Catalytic converters convert.

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CO to CO₂

N₂ to NO

CO₂ to CO

N₂to NO₂

The coal in which the percentage of carbon is 60%

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Peat

Lignite

Bituminous

Anthracit

Alkyl radical is derivative of

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Alkane

Alkene

Alkyne

All

Which acid is used for food preservation?

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Hydrochloric acid

Benzoic acid

Sulphuric acid

Nitric acid.

Which one of the following is not air pollutant.

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CO₂

CO

NO₂

O₂

The % age of carbon in peat is :

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60%

70%

80%

90%

A pollutant is a waste material that pollutes.

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Air

Water

Soil

All of them

Hook worm infects.

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Liver

Small intestine

Large intestine

Stomach

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