Chemistry The manufacture of iron from iron ore involves the process of Reduction Fractional distillation Oxidation Electrolysis Reduction Fractional distillation Oxidation Electrolysis ANSWER DOWNLOAD EXAMIANS APP
Chemistry The half life period of an isotope is 2 hours. After 6 hours what fraction of the initial quantity of the isotope will be left behind? 1/4 1/8 1/3 1/6 1/4 1/8 1/3 1/6 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Impure camphor is purified by Fractional distillation Steam distillation Fractional crystallisation Sublimation Fractional distillation Steam distillation Fractional crystallisation Sublimation ANSWER DOWNLOAD EXAMIANS APP
Chemistry What happens when a drop of glycerol is added to crushed KMnO4 spread on a paper ? There is no reaction. There is a crackling sound The paper ignites There is a violent explosion. There is no reaction. There is a crackling sound The paper ignites There is a violent explosion. ANSWER DOWNLOAD EXAMIANS APP
Chemistry Wax used for making candle is chemically a mixture of Aliphatic hydrocarbons Cyclic hydrocarbons Aromatic hydrocarbons Aliphatic and aromatic hydrocarbons Aliphatic hydrocarbons Cyclic hydrocarbons Aromatic hydrocarbons Aliphatic and aromatic hydrocarbons ANSWER DOWNLOAD EXAMIANS APP
Chemistry The most suitable unit for expressing nuclear radius is : Angstrom Fermi Micron Nanometre Angstrom Fermi Micron Nanometre ANSWER DOWNLOAD EXAMIANS APP
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