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Chemistry

Chemistry
Which of the following elements is not present in stainless steel?

Iron
Tungsten
Chromium
Nickel

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Chemistry
Iron is prevented from rusting by coating with zinc. This process is called as

Reduction
Galvanisation
Corrosion
Sublimation

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Chemistry
Vinegar made by fermentation from cane sugar contains

Palmitic acid
Citric acid
Acetic acid
Lactic acid

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Chemistry
Diamond is lustrous because

Its refractive index is high
It is colourless
It is hard
It is pure

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Chemistry
Which of the following is the petroleum wax ?

Bees wax
Jojoba wax
Paraffin wax
Carnauba wax

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Chemistry
Which metal is the heaviest in periodic table among the following ?

Os
W
Pt
Pb

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