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CHEMISTRY

Chemistry
What is the most commonly used substance in fluorescent tubes?

Sodium oxide and argon
Sodium vapour and neon
Mercury vapour and argon
Mercury oxide and neon

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Chemistry
Tear gas is :

Nitrous oxide
Chloroprene
Bleaching powder
Carbonyl chloride

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Chemistry
Tetra ethyle lead (TEL) is

An antioxidant
A catalyst in burning fossil fuel
A reductant
An antiknock compound

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Chemistry
The drug ‘Marijuana’ is a

Hallucinating substance
Mental stimulant
Sedative
Tranquillizer

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Chemistry
The Refrigerant 'FREON' is

Difluoro Dichloro Methane
Calcium Tetra Fluoride
Hydrofluosilicic Acid
Fluorspar and Felspar

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