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Chemistry

Chemistry
The acid present in red ants is

Butyric acid
Caproic acid
Formic acid
Acetic acid

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Chemistry
The function of sedimentation tank in sewage treatment is to:

Aerate the sewage
Remove water content
Disinfect the sewage
Remove suspended solids

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Chemistry
Among the following iron ores, the highest percentage of iron content is found in–

Magnetite
Haemetite
Limnonite
None of these

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Chemistry
An inert gas mixed with oxygen given to patients suffering from restricted breathing is

Argon
Krypton
Helium
Radon

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Chemistry
Zone refining is used for the purification of

Cu
Au
Ag
Ge

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Chemistry
In galvanization, iron is coated with

Copper
Nickel
Zinc
Tin

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