Chemistry What is the most common salt in sea water ? Potassium chloride Calcium carbonate Sodium chloride Magnesium sulphate Potassium chloride Calcium carbonate Sodium chloride Magnesium sulphate ANSWER DOWNLOAD EXAMIANS APP
Chemistry Among the following the hardest metal is Gold Iron Tungsten Platinum Gold Iron Tungsten Platinum ANSWER DOWNLOAD EXAMIANS APP
Chemistry The names of the scientists, Newlands, Mendeleev, and Meyer are associated with the development of periodic table of contents atomic structure discovery of elements metallurgy periodic table of contents atomic structure discovery of elements metallurgy ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following forms of phosphorus is most reactive? White phosphorus Violet phosphorus Black phosphorus Red phosphorus White phosphorus Violet phosphorus Black phosphorus Red phosphorus ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following species has the highest bond order, shortest bond length and maximum bond strength O+2 O-22 O-2 O2 O+2 O-22 O-2 O2 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The polymerisation of which often following is used in manufacturing of polythene in industry ? Methane Ethylene Acetylene Styrene Methane Ethylene Acetylene Styrene ANSWER DOWNLOAD EXAMIANS APP
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