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

Question # 1

The process of removing temporary hardness of water.

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Clark's method

Washing soda method

Sodium zeolite

Filteration method

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Question # 2

What percentage of nitrogen and oxygen is in the atmosphere.

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69%

79%

89%

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Question # 3

Almost all air crafts fly in which reion?

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Troposphere

Stratosphere

Mesosphere

Thermosphere

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Question # 4

A strange bitter smell noticed near photo copier machine is of.

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H₂S

SO₂

O₂

O₃

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Question # 5

The reaction in which the number of moles reactants and products not equal in balance chemical equation the units of Kc for this reactions are

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mol^-2

dm³

mol²

mol dm^-1

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Question # 6

Which one of these is used as anaesthesia?

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carbon black

Mehtane

Ethane

Chloroform

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Question # 7

Which is the natural sugar found in starchy food.

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Pentose

Dextrose

Hexose

All of them

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Question # 8

____________ is synthetic fiber.

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Cotton

Woal

Nylon

Silk

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Question # 9

Swimming pools are cleaned by a process:

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Hydrogenation

Bromination

Chlorination

Nitration

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Question # 10

According to Bronsted and Lowry concept an acid is a substance that can donate.

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Proton

Electron pair

Neutron

Electron

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Question # 11

The strone heating of coal in retorts in the absence of air is called.

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Fractional distillation

sublimation

Roasting

Destructive distillation

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Question # 12

Which of the following can be used as a fuel?

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Methanol

Ethanol

Bio-diesel

All of them

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Question # 13

Oxidation of ethene with KMnO₄produces.

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oxalic acid

glyoxal

ethene glycol

Propene glycol

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