Chemistry What is the element required for solar energy conversion ? Silicon Tantalum Ultra pure carbon Beryllium Silicon Tantalum Ultra pure carbon Beryllium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is used for dating very old objects of archaeological importance? Phosphorus-31 Carbon-14 Radium Tritium Phosphorus-31 Carbon-14 Radium Tritium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following pollutants is main product of automobile exhaust ? Hydrocarbons CO CO2 NO Hydrocarbons CO CO2 NO ANSWER DOWNLOAD EXAMIANS APP
Chemistry The structure of NaCl crystal is Square planar Body centered cubic Octahedral Face centered cubic Square planar Body centered cubic Octahedral Face centered cubic ANSWER DOWNLOAD EXAMIANS APP
Chemistry The advantage of detergents over soaps is Detergents give lather even with hard water Detergents are soluble in water Soaps give lather with only soft water Detergents could not give much lather Detergents give lather even with hard water Detergents are soluble in water Soaps give lather with only soft water Detergents could not give much lather ANSWER DOWNLOAD EXAMIANS APP
Chemistry Atomic number of an atom gives the number of which of the following ? Neutrons and protons Neutrons Electrons Protons Neutrons and protons Neutrons Electrons Protons ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS