Question # 1

Arrhenius put forward acid base concept in.

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1878

1786

1787

1790

The % age of carbon is bituminous is

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60

70

80

90

When bromine water is added to acetylene its red-brown colour is changed into:

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red

green

violet

discharged

Which hydrocarbon decolorizes the pink colour of acidic solution of potassium permanganate?

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CH₄

C₂H₄

C₂H₆

C₂H₅

Low sugar level in human body result in.

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Hyperglycemia

Hypoglycemia

Anemia

All of them

When bones are heated they give.

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Starch

Gelatin

Fats

Oils

The number of carbon atoms present in petroleum gas.

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1-2

1-3

1-4

1-5

How many % age of nitrogen in urea fertilizers?

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40.6

45.6

46.6

50

Earth has natural systems.

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One

Two

Three

Four

Which one of the following properties of water is responsible for rising of water in plants?

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Specific heat capacity

Viscosity

Excellent solvent action

Capillary action

Just above the Earth's surface is

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Mesosphere

Stratosphere

Theremosphere

Troposphere

A hydrocarbon has molecular formula C₈H₁₄. What is the molecular formula of the next number of the same homologous series.

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C₉H₁₈

C₉H₁₆

C₉H₂₀

C₉H₁₂

Which one is not the fraction of residual oil?

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Paraffin wax

Asphalt

Fuel oil

Coke

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