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Chemistry

Chemistry
An alloy used in making heating elements for electric heating device is

German Silver
Solder
Nichrome
Alloy Steel

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Chemistry
Detergents clean surfaces on the principle of

Viscosity
Elasticity
Floatation
Surface tension

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Chemistry
The unit of ionic product of water (Kw) is :

Mol-1 let-2
Mol2 let-1
Mol2 let-2
Mol-1 let-1

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Chemistry
Magnetite is

2Fe2O3. 3H2O
FeCO3
Fe2O3
Fe3O4

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Chemistry
The metal that is used as a catalyst in the hydrogenation of oils is

Pb
Pt
Cu
Ni

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Chemistry
Burning pyrites ore gives out

Nitrogen dioxide gas
Carbon dioxide gas
Nitric oxide gas
Sulphur dioxide gas

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MORE MCQ ON Chemistry

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