Chemistry A potato tuber has been cut into two halves. A few drops of iodine solution are placed on the cut surface of one of the halves. What colour change will be noticed? From blue to pink From brown to orange-red From brown to blue-black From pink to blue-green From blue to pink From brown to orange-red From brown to blue-black From pink to blue-green ANSWER DOWNLOAD EXAMIANS APP
Chemistry Activated Charcoal is used to remove colouring matter from pure substances by Adsorption Reduction Bleaching Oxidation Adsorption Reduction Bleaching Oxidation ANSWER DOWNLOAD EXAMIANS APP
Chemistry Acid rain is caused due to emission of which of the following in to the atmosphere ? Carbon dioxide and carbon monoxide Oxides of nitrogen and sulphur Ozone and carbon dioxide Carbon monoxide and nitrogen Carbon dioxide and carbon monoxide Oxides of nitrogen and sulphur Ozone and carbon dioxide Carbon monoxide and nitrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Diamonds are glittering and attractive because light incident on them undergoes Highest refraction Hundred percent transmission Multiple surface reflections Multiple internal reflections Highest refraction Hundred percent transmission Multiple surface reflections Multiple internal reflections ANSWER DOWNLOAD EXAMIANS APP
Chemistry In galvanization, iron is coated with Tin Nickel Zinc Copper Tin Nickel Zinc Copper ANSWER DOWNLOAD EXAMIANS APP
Chemistry Air shows the property of Both A and B O2 N2 None of these Both A and B O2 N2 None of these ANSWER DOWNLOAD EXAMIANS APP
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