Chemistry Brass gets discoloured in air due to constant exposure in presence of: Aluminium phosphide Aluminium sulphide Hydrogenated wafers Hydrogen sulphide Aluminium phosphide Aluminium sulphide Hydrogenated wafers Hydrogen sulphide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is not a method of preparing oxygen? Fractional distillation of liquid air Decomposition of potassium permanganate Decomposition of manganese dioxide Electrolysis of water Fractional distillation of liquid air Decomposition of potassium permanganate Decomposition of manganese dioxide Electrolysis of water ANSWER DOWNLOAD EXAMIANS APP
Chemistry The main component of liquid bleach is: Sodium chloride Sodium hypochlorite Sodium hypochlorate Hydrochloric acid Sodium chloride Sodium hypochlorite Sodium hypochlorate Hydrochloric acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry Hardness of the water is commonly measured in terms of Calcium carbonate equivalents Magnesium carbonate equivalents Magnesium sulphate equivalents Calcium sulphate equivalents Calcium carbonate equivalents Magnesium carbonate equivalents Magnesium sulphate equivalents Calcium sulphate equivalents ANSWER DOWNLOAD EXAMIANS APP
Chemistry The metal compound commonly found in Sindhoor or Kumkum is based on Tin Copper Zinc Lead Tin Copper Zinc Lead ANSWER DOWNLOAD EXAMIANS APP
Chemistry The molecular mass of a gas is Twice its vapour pressure Not related to its vapour pressure Equal to its vapour pressure Half its vapour pressure Twice its vapour pressure Not related to its vapour pressure Equal to its vapour pressure Half its vapour pressure ANSWER DOWNLOAD EXAMIANS APP
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