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CHEMISTRY

Chemistry
The inert gas used as beacon light is

Ar
Ne
Kr
He

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Chemistry
The noble gas used in radiotherapy is

Xenon
Radon
Neon
Argon

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Chemistry
Inert gases are

Chemically very active
Chemically unreactive
Not stable
Miscible with water

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Chemistry
Which one of the following does not form oxyacid ?

Nitrogen
Chlorine
Sulphur
Fluorine

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Chemistry
Which of the following is not a method of preparing oxygen?

Decomposition of potassium permanganate
Electrolysis of water
Decomposition of manganese dioxide
Fractional distillation of liquid air

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