Chemistry Copper substances when exposed to air gains a green coating due to the formation of: Cu(NO3)2 CuO CuCO3 Cu(OH)2 CuSO4 Cu(NO3)2 CuO CuCO3 Cu(OH)2 CuSO4 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following vitamins is generally excreted by human in urine? Vitamin D None of these Vitamin B Vitamin C Vitamin D None of these Vitamin B Vitamin C ANSWER DOWNLOAD EXAMIANS APP
Chemistry The non-metal found in the liquid state is Nitrogen Chlorine Bromine Fluorine Nitrogen Chlorine Bromine Fluorine ANSWER DOWNLOAD EXAMIANS APP
Chemistry The gas used to dilute oxygen for breathing by deep sea divers is: Argon Nitrogen Helium Neon Argon Nitrogen Helium Neon ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following produces highest amount of energy upon oxidation? Glucose Fat An alkane Protein Glucose Fat An alkane Protein ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following compounds is commonly used as an antiseptic in mouthwashes and toothpastes ? Sodium chloride Borax Hydrogen peroxide Saltpetre Sodium chloride Borax Hydrogen peroxide Saltpetre ANSWER DOWNLOAD EXAMIANS APP
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