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CHEMISTRY

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

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

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Chemistry
Tear gas is :

Nitrous oxide
Chloroprene
Carbonyl chloride
Bleaching powder

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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

Sedative
Hallucinating substance
Mental stimulant
Tranquillizer

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Chemistry
The Refrigerant 'FREON' is

Fluorspar and Felspar
Difluoro Dichloro Methane
Hydrofluosilicic Acid
Calcium Tetra Fluoride

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