Chemistry Which of the following is a natural polymer? Starch Polythene Bakelite Nylon Starch Polythene Bakelite Nylon ANSWER DOWNLOAD EXAMIANS APP
Chemistry Copper substances when exposed to air gains a green coating due to the formation of: Cu(NO3)2 CuCO3 Cu(OH)2 CuO CuSO4 Cu(NO3)2 CuCO3 Cu(OH)2 CuO CuSO4 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which among the following elements is found in maximum percentage in the human body ? Hydrogen Carbon Nitrozen Oxyzen Hydrogen Carbon Nitrozen Oxyzen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is usually not an air-pollutant? Carbon dioxide Hydrocarbons Sulphur dioxide Nitrous oxide Carbon dioxide Hydrocarbons Sulphur dioxide Nitrous oxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry The amount of chlorine available in water after disinfection is called as Residual chlorine Free chlorine Free available chlorine Combined available chlorine Residual chlorine Free chlorine Free available chlorine Combined available chlorine ANSWER DOWNLOAD EXAMIANS APP
Chemistry Petroleum is a mixture of Elements Hydrocarbons Salts Polymers Elements Hydrocarbons Salts Polymers ANSWER DOWNLOAD EXAMIANS APP
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