Chemistry Food cans are coated with tin and not with zinc because Zinc is costlier than tin Zinc is more reactive than tin Zinc has a higher melting point than tin Zinc is less reactive than tin Zinc is costlier than tin Zinc is more reactive than tin Zinc has a higher melting point than tin Zinc is less reactive than tin ANSWER DOWNLOAD EXAMIANS APP
Chemistry Copper substances when exposed to air gains a green coating due to the formation of: CuCO3 Cu(OH)2 CuSO4 CuO Cu(NO3)2 CuCO3 Cu(OH)2 CuSO4 CuO Cu(NO3)2 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The molecular formula of phosphorous is P2 P3 P4 P1 P2 P3 P4 P1 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Ultraviolet rays can be used in water treatment as Disinfectant Hydrolyser Flocculator Precipitator Disinfectant Hydrolyser Flocculator Precipitator ANSWER DOWNLOAD EXAMIANS APP
Chemistry Conduction band electrons have more mobility than holes because they Need less energy to move them Experience collision less frequently Are lighter Have negative charge Need less energy to move them Experience collision less frequently Are lighter Have negative charge ANSWER DOWNLOAD EXAMIANS APP
Chemistry Glycol is added to aviation gasoline because it Reduces consumption of petrol Prevents freezing of petrol Increases efficiency of petrol Reduces evaporation of petrol Reduces consumption of petrol Prevents freezing of petrol Increases efficiency of petrol Reduces evaporation of petrol ANSWER DOWNLOAD EXAMIANS APP
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