Chemical Process Which of the following is not a pyrite ore? Siderite Celestite Galena Gypsum Siderite Celestite Galena Gypsum ANSWER DOWNLOAD EXAMIANS APP
Chemical Process __________ is used as a flux in the extraction of iron from iron ore (hametite) in blast furnace. Limestone Bauxite Manganese Quartz Limestone Bauxite Manganese Quartz ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Oils are partially hydrogenated (not fully) to manufacture vanaspati, because fully saturated solidified oils Cause cholesterol build up and blood clotting Are prone to rancid oxidation Always contain some amount of nickel (as their complete removal is very difficult) Have affinity to retain harmful sulphur compounds Cause cholesterol build up and blood clotting Are prone to rancid oxidation Always contain some amount of nickel (as their complete removal is very difficult) Have affinity to retain harmful sulphur compounds ANSWER DOWNLOAD EXAMIANS APP
Chemical Process __________ is produced using polycondensation reaction. Polythene None of these Poly vinyl chloride Phenol formaldehyde Polythene None of these Poly vinyl chloride Phenol formaldehyde ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Hydrogenation of oil does not Improve its resistance to oxidation None of these Raise its melting point Remove double bonds Improve its resistance to oxidation None of these Raise its melting point Remove double bonds ANSWER DOWNLOAD EXAMIANS APP
Chemical Process The most reactive allotropic form of phosphorus is __________ phosphorus. Violet Red Yellow Black Violet Red Yellow Black ANSWER DOWNLOAD EXAMIANS APP
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