Chemistry A metal is exposed to the atmosphere for sometime. It becomes coated with green carbonate. The metal must be Copper Aluminium Silver Zinc Copper Aluminium Silver Zinc ANSWER DOWNLOAD EXAMIANS APP
Chemistry The mineral containing both magnesium and calcium is calcite carnallite magnesite dolomite calcite carnallite magnesite dolomite ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following minerals is found in Monazite sand ? Uranium Sodium Thorium Potassium Uranium Sodium Thorium Potassium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is known as the 'brown coal'? Coke Bituminous Lignite Anthracite Coke Bituminous Lignite Anthracite ANSWER DOWNLOAD EXAMIANS APP
Chemistry The minimum energy required for an effective collision is Activation energy Internal energy Free energy Threshold energy Activation energy Internal energy Free energy Threshold energy ANSWER DOWNLOAD EXAMIANS APP
Chemistry The most suitable unit for expressing nuclear radius is : Angstrom Micron Fermi Nanometre Angstrom Micron Fermi Nanometre ANSWER DOWNLOAD EXAMIANS APP
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