Question # 1

Potassium ferrocyanide salt is.

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Normal

complex

Basic

Acidic

Formation profess of Ammonia by the combination Hydrogen and Nitrogen was given by:

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Dalton

Thomson

Haber

Waage

Citric acid is present in

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Citrus fruits

Sour milk

Rancid butter

Apple

The surface tension of water is:

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very low

moderate

high

zero

Coal is the mixture of

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Hydrogen

Methane

Carbon monoxide

All

Which one is used for alkaline batteries?

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NaOH

Ca(OH)₂

KOH

Mg(OH)₂

The freezing point of water is:

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10 ^oC

100^oC

0^oC

46^oC

Which one of the following diseases severe diarrhea and can be fatal?

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Joundice

Cholera

Dysentery

Typhoid

Boiling point of water is:

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0^oC

25^oC

80^oC

100^oC

Pitch is black residue of

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Coke

Coal-tar

Coal

Coal gas

In the beginning the rate of reverse reaction is

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Negligible

Moderate

Very fast

Slow

Concentration is a .

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Mixing technique

Separating technique

Boiling technique

cooling technique

All water soluble metallic oxides have characteristic of:

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acidic

basic

neutral

amphoteric

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