Question # 1

When the number of moles of both sides are equal in a reaction then the unit of Kc will be:

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no unit

mol-2 dm6

mol dm3

mo-2 dn

Malic acid founds in:

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Apple

Fats

Rancid Butter

Oranges

The unit of molar concentration is:

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moldm^-3

moldm⁺³

molcm^-3

molcm⁺³

Alkanes do not react in

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Diffused sunlight

Dark

Bright sunlight

None of these

Ozone layer is not found is

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Upper stratosphere

Mid stratosphere

Lower stratosphere

All of them

Bronsted and Lowry presented their theories of acids and bases in

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1785

1787

1923

1925

In forth flotation process the ore particles are preferentially wetted by:

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water

oil

benzene

petrole

The lives of aquatic plants and animals are indirectly related to concentration of dissolved ------ in water:

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hydrogen

oxygen

chlorine

nitrogen

The most important oligosaccharide is:

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Sucrose

Glucose

Fractose

Maltose

Water is a;

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strong electrolyte

non-electrolyte

weak electrolyte

natural compound

Pitch is black residue of.

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Coke

Coal tar

Coal

Coal gas

Amino acid are the building blocks of .

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Proteins

Carbohydrates

Vitamins

fats

Lavoisier named binary compounds of oxygen acids in .

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1787

1790

1815

1828

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