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Chemistry

Chemistry
The iron ore magnetite consists of

3Fe2O3 .. 3H2O
FeCO3
Fe2O3
Fe3OH4

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Chemistry
In galvanization, iron is coated with

Nickel
Tin
Zinc
Copper

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Chemistry
Which of the following is an iron ore ?

Nitrite
Magnetite
Lignite
Bauxite

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Chemistry
Curd is sour due to presenceof

Lactic acid
Acetic acid
Tartaric acid
Oxalic acid

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Chemistry
Silk fibre chemically is :

Fat
Carbohydrate
Protein
Cellulose

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Chemistry
Rock salt is a mineral containing

Potassium
Sodium
Iron
Magnesium

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