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CHEMISTRY

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

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

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Chemistry
Tear gas is :

Bleaching powder
Chloroprene
Nitrous oxide
Carbonyl chloride

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Chemistry
Tetra ethyle lead (TEL) is

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

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Chemistry
The drug ‘Marijuana’ is a

Tranquillizer
Mental stimulant
Hallucinating substance
Sedative

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Chemistry
The Refrigerant 'FREON' is

Fluorspar and Felspar
Hydrofluosilicic Acid
Difluoro Dichloro Methane
Calcium Tetra Fluoride

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