Chemistry When conc. H2SO4 is added to dry KNO3, brown fumes are evolved. These fumes are due to SO3 N2O NO2 SO2 SO3 N2O NO2 SO2 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Glycol is added to aviation gasoline because it Increases efficiency of petrol Reduces evaporation of petrol Reduces consumption of petrol Prevents freezing of petrol Increases efficiency of petrol Reduces evaporation of petrol Reduces consumption of petrol Prevents freezing of petrol ANSWER DOWNLOAD EXAMIANS APP
Chemistry A balloon filled with helium rises in air because Air exerts an upward force on the balloon Helium is less dense than air Helium pushes down on the air below the balloon The balloon is weightless Air exerts an upward force on the balloon Helium is less dense than air Helium pushes down on the air below the balloon The balloon is weightless ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which among the following coal contains 90 per cent of carbon? Peat Lignite Anthracite Bitumen Peat Lignite Anthracite Bitumen ANSWER DOWNLOAD EXAMIANS APP
Chemistry The graphite rods in the nuclear reactor produce neutrons react with U to release energy convert fast moving neutrons into thermal neutrons undergo combustion which triggers the nuclear fission produce neutrons react with U to release energy convert fast moving neutrons into thermal neutrons undergo combustion which triggers the nuclear fission ANSWER DOWNLOAD EXAMIANS APP
Chemistry The metal does not give H2 on treatment with dilute HCL is Ag Zn Fe Ca Ag Zn Fe Ca ANSWER DOWNLOAD EXAMIANS APP
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