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CHEMISTRY

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

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

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Chemistry
Tear gas is :

Carbonyl chloride
Bleaching powder
Chloroprene
Nitrous oxide

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Chemistry
Tetra ethyle lead (TEL) is

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

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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

Hydrofluosilicic Acid
Calcium Tetra Fluoride
Fluorspar and Felspar
Difluoro Dichloro Methane

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