Question # 1

Which are responsible for transmitting genetic information form generation to generation:

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vitamins

lipids

proteins

Nucleic acids

Main component of natural gas is

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Methane

propane

Butane

Propene

Who put forward the vital force theory?

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Berzelius

Wohler

Dalton

Lavoisier

Acid rain affects the aquatic life by clogging fish gills because of:

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Lead metal

Chromium metal

Mercury metal

Aluminium metal

The reaction in which the products can recombine to form reactants are called.

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Reversible reaction

Irreversible reaction

Decomposition

Addition

Percentage of methane present in natural gas is.

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75%

80%

85%

90%

Petroleum fraction having composition C₇to C₁₀IS called

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Petroleum gas

Petroleum Ether

Kerosine oil

Gasoline or petrol

Acetic acid is a weak acid because it.

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Is used in cooking and flavouring food.

Has very low pH

Is not fully ionized

Does not contain any hydrogen ions.

Photosynthesis process produce.

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Carbondioxide

Glucose and oxygen

Carbon di oxide

glucose and carbondoxide

Which gas is emitted due to volcanic eruption?

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CO₂

SO₃

NO₂

H₂

Neurological damage is caused by the poisoning of.

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Lead

Cadimium

Mercury

All of them

Formula of baking soda is.

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Na₂CO₃

NaHCO₃

Na₂SO₄

Na₂PO₄

Which one of the following gas has greater retaining capacity?

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O₂

N₂

CO

CO₂

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