Chemistry Diamond is harder than graphite because of : None of these Difference of crystalline structures Difference in layers of atoms Tetrahedral structure of diamond None of these Difference of crystalline structures Difference in layers of atoms Tetrahedral structure of diamond ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is used in welding broken pieces of iron rails and machine parts? Solder None of these Aluminium powder Aluminium sulphate Solder None of these Aluminium powder Aluminium sulphate ANSWER DOWNLOAD EXAMIANS APP
Chemistry Heavy metals got their name because compared to other atoms they have Higher densities Higher atomic numbers Higher atomic masses Higher atomic radii Higher densities Higher atomic numbers Higher atomic masses Higher atomic radii ANSWER DOWNLOAD EXAMIANS APP
Chemistry When conc. H2SO4 is added to dry KNO3, brown fumes are evolved. These fumes are due to N2O SO2 SO3 NO2 N2O SO2 SO3 NO2 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The chemical used in embalming biological materials is Formaldehyde in water Ethylene glycol Formaldehyde in methanol Gaseous formaldehyde Formaldehyde in water Ethylene glycol Formaldehyde in methanol Gaseous formaldehyde ANSWER DOWNLOAD EXAMIANS APP
Chemistry Carborundum is another name of Calcium carbide Silicon carbide Silicon oxide Calcium oxide Calcium carbide Silicon carbide Silicon oxide Calcium oxide ANSWER DOWNLOAD EXAMIANS APP
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