Question # 1

Percentage of carbon in peat is.

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50%

60%

70%

80%

|Which one is not an Arrhenius acid?

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HCl

H2SO₄

CO₂

HNO₃

The base which is used in alkaline batteries is.

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NaOH

Al(OH)₂

KOH

Mg(OH)₂

Acid means

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Sour

Bitter

Sweet

Salty

Freezing point of water is:

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-4°C

0°C

-36°C

-58°C

Dehydrohalogenation take place in the presence of.

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Aqueous NaOH

Alcoholic KOH

Aqueous KOH

Alcoholic NaOH

Pitch is black residue of.

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Coke

Coal tar

Coal

Coal gas

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

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-58°C

-93°C

-61°C

-49°C

Vital force theory was rejected by.

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Jabir Bin Hayan

Drawin

Wohler

Berzellius

The source of galactose.

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Fruits

Vegetables

Cereals

All of them

When glucose and fructose combine and forms.

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Starch

Cellulose

Sucrose

None of these

Photosynthesis process produce.

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Carbondioxide

Glucose and oxygen

Carbon di oxide

glucose and carbondoxide

If Qc = Kc the reaction goes in:

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Forward

Reverse

At equilibrium state

None

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