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Chemistry

Chemistry
In which of the following states maximum iron ore is found ?

FeCO3
Fe2O3
Fe3O4
FeS2

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Chemistry
The length of double bond is _______ than single bond

Shorter
None of these
Of same lenght
Longer

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Chemistry
Which of the following has pH value 7?

Sodium Carbonate
HCl
H2SO4
Pure Water

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Chemistry
The gas used in the manufacture of vanaspati from vegetable oil is

carbon dioxide
nitrogen
oxygen
hydrogen

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Chemistry
Preparation of ‘Dalda or Vanaspati’ ghee from vegetable oil utilizes the following process :

Oxidation
Hydrogenation
Hydrolysis
Ozonolysis

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Chemistry
The apparatus used to test acidity of aqueous solution is

Ammeter
Hygrometer
Acidmeter
PH meter

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