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Chemistry

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

Tungsten
Iron
Nickel
Chromium

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Chemistry
Which one of the following is used as preservative for foodstuff ?

Sodium Benzoate
Picric acid
Sodium Chloride
Glycerine

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Chemistry
Rutherford’s scattering experiment proved the presence of

Nucleus in atoms
Neutrons in atoms
Atoms in all matter
Electrons in atoms

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Chemistry
The influence of temperature on reaction rate is predicted by

Kirchhoff's equation
Van der Waals equation
Lewis equation
Arrhenius equation

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Chemistry
Cement is usually a mixture of :

Calcium silicate and calcium aluminate
Calcium silicate and calcium ferrate
Calcium aluminate and calcium ferrate
Lime stone and silicon dioxide

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Chemistry
The apparatus used to test acidity of aqueous solution is

Ammeter
Hygrometer
Acidmeter
PH meter

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