Nuclear radiation is emitted by those elements whose:

A: molecules are unstable

B: molecules are stable

C: nuclei are stable

D: nuclei are unstable

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nuclei are unstable

The heaviest man made element found so for is_____?

A: Ununoctium

B: Promethium

C: Francium

D: Technetium

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Ununoctium

The unit to measure the quantity of Ozone in atmosphere is?

A: Dalton

B: Dobson

C: Cuolomb

D: none

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Dobson

Bar’ is the unit of______?

A: Heat

B: Temperature

C: Atmospheric pressure

D: Current

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Atmospheric pressure

Scalding with steam is more severe than scalding by boiling water because__?

A: Steam is at a higher temperature

B: Steam can penetrate the skin

C: Steam contains more energy than boiling water

D: Steam is at a higher pressure

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Steam contains more energy than boiling water

Which triplet in DNA codes for valine ?

A: AGU

B: CTT

C: CAT

D: AAT

E: None of these

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None of these

Which one of the following gases is readily soluble in water at room temperature?

A: Nitrogen

B: Chlorine

C: Ammonia

D: Carbon dioxide

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Ammonia

Vitamin B3 is also known as_____?

A: Riboflavin

B: Thiamine

C: Niacin

D: Retinol

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Niacin

What is the smallest unit of heredity?

A: Gene

B: Chromosomes

C: Nucleotides

D: none

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Gene

Involuntary muscles in a human body are present in_____?

A: Tongue

B: Brain

C: Digestive system

D: Limbs

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Digestive system

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