Chemistry Which of the following is not a chemical reaction'? Conversion of water into steam Burning of paper Digestion of food Burning of coal Conversion of water into steam Burning of paper Digestion of food Burning of coal ANSWER DOWNLOAD EXAMIANS APP
Chemistry The element used for making solar cells is Sodium Calcium Silicon Magnesium Sodium Calcium Silicon Magnesium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Oxygen has (+) oxidation number only in H2O (2) OF2 N2O C12O H2O (2) OF2 N2O C12O ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which method will be employed to test the hardness of water? Distillation Formation of lather with soap Boiling None of these Distillation Formation of lather with soap Boiling None of these ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which among the following is a carbohydrate ? Hydrogen peroxide Cane-sugar Nylon Turpentine Hydrogen peroxide Cane-sugar Nylon Turpentine ANSWER DOWNLOAD EXAMIANS APP
Chemistry The compound to which H2 does not add is Biphenyl ethylene Tetraphenyl ethylene Tetra –9 – phenanthrylethylene Tetra – a –naphthylethylene Biphenyl ethylene Tetraphenyl ethylene Tetra –9 – phenanthrylethylene Tetra – a –naphthylethylene ANSWER DOWNLOAD EXAMIANS APP
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