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Chemistry

Chemistry
Which of the inert gases can form compounds?

Argon
Helium
Krypton
Xenon

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Chemistry
The deterioration of a metal by an electrochemical process is commonly termed as

Abrasion
Passivation
Erosion
Corrosion

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Chemistry
The fiber least prone to catch fire is

Polyester
Nylon
Cotton
Terylene

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Chemistry
Which of the following is an antidiabatic drug?

Penicillin
Chloroquine
Aspirin
Insulin

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Chemistry
The main active constituent of tea and coffee is

aspirin
chlorophyll
nicotine
caffeine

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Chemistry
The mass number of an atom is equal to

the number of nucleons
the number of protons
the number of protons and electrons
the number of neutrons

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