Chemistry Neoprene is prepared by polymerisation of which of the following 2-methyl 1, 3-butadiene 2-chloro-1, 3-butadiene Acrylonitrile 1,3-butadiene 2-methyl 1, 3-butadiene 2-chloro-1, 3-butadiene Acrylonitrile 1,3-butadiene ANSWER DOWNLOAD EXAMIANS APP
Chemistry The first metal used by a man was Silver Copper Bronze Brass Silver Copper Bronze Brass ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is used for refrigeration? Chlorine Phosphine Freon Sulphur dioxide Chlorine Phosphine Freon Sulphur dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Formation of ozone hole is maximum over India Africa Antarctica Europe India Africa Antarctica Europe ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following gases is mixed with oxygen for breathing by divers in aqua lungs? Methane Nitrogen Hydrogen Helium Methane Nitrogen Hydrogen Helium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is chiefly present in LPG (Liquefied Petroleum Gas) ? Propane Butane Methane Ethane Propane Butane Methane Ethane ANSWER DOWNLOAD EXAMIANS APP
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