Question # 1

What is an empirical formula?

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the mean mass of the atoms of an element

The simplest ratio of atoms of each element in a compound

the sum of protons and neutrons in the nucleus

The actual numbers of atoms of each element in a compound

Who discovered Thallium?

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Niels Bohr

Tom Mboya

William Crookes

A.C. Bequerel

The branch of study dealing with old age and aging is called?

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Oncology

Gerontology

Teratology

Ornithology

Plant have______while animals lack it

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starch

Cellulose

Protein

Fat

Which two gentlemen accidentally discovered cosmic radiation in 1965?

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Arno Penzias and Robert Wilson

Alan Guth and Denid Overbye

Robert Dicke and geroge gamow

Georges Lemaitre and Bell Holmdel

bats can ascertain distance, directions, natural and size of the obstacles at night, This is possible by reflection of the emitted?

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Supersonic waves for distant object

Supersonic waves form the bat

Ultrasonic waves form distant objects

Ultrasonic waves form the bat

What is Ferrites?

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Magnetic but have low resistance

Magnetic but have high resistance

Non-magnetic with low resistance

None- magnetic with high resistance

Nitrogenous food is

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Protein

Lipid

Salts

Carbohydrate

Successive discounts of 10% and 20% are equivalent to a single discount of:

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28%

30%

15%

72%

Influenza is caused by a -

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virus

Fungus

Algae

Bacterium

Electron-volt is a unit of:

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Luminous intensity

Temperature

intensity of sound

Energy

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