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Chemistry

Chemistry
Which is the purest form of iron?

Pig iron
Cast iron
Wrought iron
Steel

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Chemistry
The fat of a common mussel-secretes a sticky glue that can be used to make heart implants. The unique chemical compound present in the glue is:

Hydroxy phenyl alanine
Dihydroxy phenyl alanine
Amino phenyl alanine
Phenyl alanine

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Chemistry
In the periodic table of elements, on moving from left to right across a period, the atomic radius

Does not follow a definite pattern
Remains unchanged
Decreases
Increases

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Chemistry
Depletion of ozone layer causes

Blood cancer
Breast cancer
Lung cancer
Skin cancer

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Chemistry
The nucleus of an atom consists of

All of these
protons and neutrons
electrons and protons
electrons and neutrons

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Chemistry
Except mercury which is the other metal that is liquid at standard conditions for temperature and pressure

Lead
Magnesium
Barium
Bromine

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MORE MCQ ON Chemistry

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