Chemistry The gas that causes suffocation and death when coal or coke is burnt in a closed room is Carbon monoxide Carbon di-oxide Methane Ethane Carbon monoxide Carbon di-oxide Methane Ethane ANSWER DOWNLOAD EXAMIANS APP
Chemistry The manufacture of iron from iron ore involves the process of Fractional distillation Oxidation Electrolysis Reduction Fractional distillation Oxidation Electrolysis Reduction ANSWER DOWNLOAD EXAMIANS APP
Chemistry The metal does not give H2 on treatment with dilute HCL is Zn Fe Ag Ca Zn Fe Ag Ca ANSWER DOWNLOAD EXAMIANS APP
Chemistry A thick paste of cement, sand and water is called Kiln Concrete Mortar R.C.C. Kiln Concrete Mortar R.C.C. ANSWER DOWNLOAD EXAMIANS APP
Chemistry Heavy metals got their name because compared to other atoms they have Higher atomic radii Higher atomic masses Higher atomic numbers Higher densities Higher atomic radii Higher atomic masses Higher atomic numbers Higher densities ANSWER DOWNLOAD EXAMIANS APP
Chemistry The first metal used by a man was Copper Silver Brass Bronze Copper Silver Brass Bronze ANSWER DOWNLOAD EXAMIANS APP
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