Question # 1

Bronsted and Lowry presented their theories of acids and bases in

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1785

1787

1923

1925

The water which produces good lather with soap is called:

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soft water

hard water

heavy water

typical water

Which one is the simplest sugar which can not be hydrolyzed?

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Glucose

Sucrose

Starch

Cellulose

Denaturing of protein is caused by.

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Heating

Changing pH

Both of them

None of these

Vitamin B₁ (Thiamin) was discovered by.

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Hopkins

Funk

J.Watson

Davy

Global warming is because of.

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Absorption of infrared radiation emitted by earth surface.

Absorption of infrared radiation coming from sun.

Absorption of infrared Ultraviolet coming from the sun.

Emission of ultraviolet radiation from the earth's surface.

Which gas saves the surface of earth from ultra violet radiation?

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CO₂

CO

N₂

O₃

Blonde hair contains compounds of:

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molybdenum

iron

titanium

copper

In the bacterial decay, the compound of which element are emitted.

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Sulphur

Carbon

Nitrogen

All of them

Which disease cause liver inflammation?

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Typhoid

Jaundice

cholera

Hepatitis

The percentage of protein in dry weight of cell.

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20%

40%

50%

70%

All bases turn red litmus

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Red

Blue

Pink

White

How trace amount of acetylene present in the coat gas.

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0.06%

0.07%

0.08%

0.09%

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