Chemistry What are the number of moles of CO2 which contains 16 g of oxygen? 0.4 mole 0.5 mole 0.25 mole 0.2 mole 0.4 mole 0.5 mole 0.25 mole 0.2 mole ANSWER DOWNLOAD EXAMIANS APP
Chemistry In a reaction of the type A+B ? C+D one could ensure it to be a first order reaction by : Increasing the concentration of a reactant Adding a catalyst Increasing the temperature Increasing the concentration of a product Increasing the concentration of a reactant Adding a catalyst Increasing the temperature Increasing the concentration of a product ANSWER DOWNLOAD EXAMIANS APP
Chemistry Extensively used nitrogenous fertilizer is Ammonium nitrate Nitro-lime Ammonium sulphate Urea Ammonium nitrate Nitro-lime Ammonium sulphate Urea ANSWER DOWNLOAD EXAMIANS APP
Chemistry The total energy of revolving electron in an atom Can have any value above zero Can never be positive Cannot be negative Will always be positive Can have any value above zero Can never be positive Cannot be negative Will always be positive ANSWER DOWNLOAD EXAMIANS APP
Chemistry Cement is formed by strongly heating a mixture of Limestone and graphite Chalk and graphite Clay and graphite Limestone and clay Limestone and graphite Chalk and graphite Clay and graphite Limestone and clay ANSWER DOWNLOAD EXAMIANS APP
Chemistry Diamond is harder than graphite because of : Difference in layers of atoms Tetrahedral structure of diamond Difference of crystalline structures None of these Difference in layers of atoms Tetrahedral structure of diamond Difference of crystalline structures None of these ANSWER DOWNLOAD EXAMIANS APP
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