Question # 1

How many percentage of sunlight is absorbed by atmosphere gases.

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12%

18%

24%

30%

Who proposed "Law of mass action"?

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Newton

Boyle

Guldberg and waage

Lavoisier

Which one of the following cannot by hydrolyzed?

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Polysacchrides

Monosacchrides

Oligosacchrides

All of these

Dehalogenation of Tetrahalides takes place in the presence of .

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K

Mg

Na

Zn dust

Acute lead poisoning causes dysfunction of.

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Kidney

Liver

CNS

All of them

Petroleum is refined by

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Destructive distillation

Fractional distillation

Simple distillations

Dry distillation

The ability of carbon atom to form chain is called.

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Isomerism

Catenation

resonance

Condensation

At which region all weather occurs?

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Troposphere

Stratosphere

Mesosphere

Thermosphere

Concentration is a separating technique in which mineral is separated from.

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Gangue

Silicates

Aluminates

All

The formula which represents the actual number of atoms in one molecule of organic compound is called.

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Molecular formula

Structural formula

Condensed formula

Dot and cross formula

The substance formed during the chemical reaction are called.

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Products

Reactants

Radical

Element

The percentage by volume of nitrogen in dry gas is.

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78.09%

20.94%

0.93%

0.03%

Mallic acid is present in

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Apple

Feats

String of bees

Urine

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10th Class Chemistry English Medium KPK Boards Online Mcqs MCQs With Answers

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