Chemistry Major portion of the earth’s crust is mainly constituted by Silicon and Iron Oxygen and Silicon Silicon and Aluminium Oxygen and Iron Silicon and Iron Oxygen and Silicon Silicon and Aluminium Oxygen and Iron ANSWER DOWNLOAD EXAMIANS APP
Chemistry Peroxyacetyl nitrate is a Plant hormone Vitamin Acidic dye Secondary pollutant Plant hormone Vitamin Acidic dye Secondary pollutant ANSWER DOWNLOAD EXAMIANS APP
Chemistry Brass is a solution of molten copper in Solid zinc Molten tin Molten zinc Gaseous zinc Solid zinc Molten tin Molten zinc Gaseous zinc ANSWER DOWNLOAD EXAMIANS APP
Chemistry The smog is essentially caused by the presence of O2 and N2 Oxides of N and S O2 and O3 O3 and N2 O2 and N2 Oxides of N and S O2 and O3 O3 and N2 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Ammonial is a mixture of Aluminium powder and ammonium sulphate Aluminium powder and ammonium nitrate Aluminium powder and ammonium chloride Aluminium powder and potassium nitrate Aluminium powder and ammonium sulphate Aluminium powder and ammonium nitrate Aluminium powder and ammonium chloride Aluminium powder and potassium nitrate ANSWER DOWNLOAD EXAMIANS APP
Chemistry Ozone saves the biosphere by absorbing high energy radiations called ________ . X–rays Infra-red (IR) Ultraviolet rays (UV) Gamma rays X–rays Infra-red (IR) Ultraviolet rays (UV) Gamma rays ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS