Chemistry Copper substances when exposed to air gains a green coating due to the formation of: CuCO3 Cu(OH)2 CuO Cu(NO3)2 CuSO4 CuCO3 Cu(OH)2 CuO Cu(NO3)2 CuSO4 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The Bhopal tragedy was caused by the gas Phosgene Carbon monoxide Chlorine Methyl isocyanate Phosgene Carbon monoxide Chlorine Methyl isocyanate ANSWER DOWNLOAD EXAMIANS APP
Chemistry Galvanization of iron is carried out using Zinc Copper Chromium Tin Zinc Copper Chromium Tin ANSWER DOWNLOAD EXAMIANS APP
Chemistry Quartz is made of Calcium Silicate Calcium Sulphate Sodium Silicate Sodium Sulphate Calcium Silicate Calcium Sulphate Sodium Silicate Sodium Sulphate ANSWER DOWNLOAD EXAMIANS APP
Chemistry If we burn graphite, No residue will be left Residue will be left It will not burn It will change into diamond No residue will be left Residue will be left It will not burn It will change into diamond ANSWER DOWNLOAD EXAMIANS APP
Chemistry Ozone layer in the upper parts of the atmosphere serves as a protective shield against harmful CO2 in the air Solar infrared radiation Solar ultraviolet radiation SO2 in the air CO2 in the air Solar infrared radiation Solar ultraviolet radiation SO2 in the air ANSWER DOWNLOAD EXAMIANS APP