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

Question # 1

The formula of ozone is.

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O₂

O₃

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Question # 2

Which of the following is reducing sugar.

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Glucose

Fructose

Sucrose

Starch

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Question # 3

The number of carbon atoms present in diesel oil.

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10-15

11-15

12-15

13-15

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Question # 4

Vibrious cholera causes.

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Choleera

Dysentery

Fluorsis

Hepatitis

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Question # 5

The sphere just above the Earth's surface is.

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Mescosphere

Stratosphere

Thermosphere

Troposphere

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Question # 6

When bromine water is added to acetylene its red-brown colour is changed into:

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red

green

violet

discharged

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Question # 7

The energy provided by carbohydrates in per gram.

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17 KJ

21 KJ

35 KJ

10 KJ

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Question # 8

In the troposphere (lowest layer), the temperature decreases form 17°C to;

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-58°C

-93°C

-61°C

-49°C

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Question # 9

When CO₂ is passed through the ammonical brine the only salt that precipitates is:

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NaHCO₃

NH₄HCO₃

Na₂CO₃

(NH₄)₂CO₃

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Question # 10

Which acid is found in Ant sting?

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Citric Acid

Formic Acid

Uric Acid

Sulphuric acid

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Question # 11

Global warming causes rising of the sea level. The cause of global warming is.

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CO₂ gas.

SO₂gas.

NO₂gases.

O₃gas.

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Question # 12

Which one of the following is non- reducing in nature;

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glucose

fructose

starch

sucrose

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Question # 13

Such reationsin which reactants and products are sufficient in quantities the Kc value of equilibrium state will be

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Very small

Very large

Moderate

None of these

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