Question # 1

Incomplete combustion of alkanes produces.

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Carbon dioxide only

Carbon monoxide only

Carbon monoxide and carbon black

Carbon dioxide and carbon black

Which one the following is more reactive?

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Methane

Ethane

Ethene

Acetylene

The ability of carbon atoms to form chains is called.

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Isomerism

Catenation

Resonance

Condensation

Acids have taste

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Bitter

Seetish

Sour

Saltish

Sum of PH and POH of a solution is:

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7

14

16

18

The percentage of water in human body is.

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40%

50%

60%

70%

Which one of the following is a fat soluble vitamin?

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A

E

K

All of these

Bister copper is pure about;

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70%

80%

90%

98%

Photosynthesis process produces.

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Starch

Cellulose

Sucrose

Glucose

For which reaction Kf is the rate constant?

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Forward reaction

Backward reaction

Upward reaction

Downward reaction

Which contains sufficient amount of metal?

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Mineral

Ores

Rocks

Soil

When bones are heated they give.

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Starch

Gelatin

Fats

Oils

conjugate base of HCl is:

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HCl^-

CH

Cl

NH₃

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