Question # 1

Inland water includes.

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River

Lakes

Streams

All of them

Blast furnace usually used for the metallurgy of.

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Iron

Copper

Aluminum

Both a and b

Arrhenius presented his concept about acids and bases in.

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1785

1787

1923

1930

Crude oil is heated to the fractionating furnace upto.

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300 ^oC

350^oC

400^oC

450^oC

The color of hydrogen Iodide is:

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Colourless

Black

Red

Pink

Which process is responsible for ascending of water in roots:

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evaporation

transpiration

condensation

capillary action

Acid occurring in sour milk

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Citric acid

Lactic acid

Bytyric acid

Malic acid

Monosaccharides consist of:

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2 to 6 carbon atoms

3 to 9 carbon atoms

4 to 10 carbon atoms

10 to 15 carbon atoms

The general formula of carbohydrate is:

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C2n(H2O)

CN(H2O)n

Cn(H2O)2n

C2n(H2O)n

On which base atmosphere is divided into four regions?

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Change in pressure

Change in rediation

Change in temperature

Change in volume

Which is not an air pollutant?

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CO₂

CO

SO₂

NH₃

Catalytic converters convert.

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CO to CO₂

N₂ to NO

CO₂ to CO

N₂to NO₂

The reduction of alkyl halides takes place in the presence of.

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Zn/HCl

Na/HCl

Mg/HCl

Cu/HCl

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