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Chemistry

Chemistry
A detergent is a

Catalyst
Cleansing agent
Soap
Drug

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Chemistry
Aerated water contains

CO2
SO2
NO2
H2

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Chemistry
Persons working in cement plants and lime stone quarries are prone to disease like

Asthma
Cancer
Pneumoconiosis
Silicosis

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Chemistry
Silicon is used in

All of these
Semiconductors
Transistors
Solar energy devices

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Chemistry
Which among the following is used to dilute oxygen in the gas cylinders used by divers ?

Krypton
Argon
Neon
Helium

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Chemistry
Cloud is a colloidal dispersion of

Mist in a dispersion medium of air
Fog in a dispersion medium of water
Water drops in a dispersion medium of air
Air in a dispersion medium of water

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