Chemistry The polymerisation of which often following is used in manufacturing of polythene in industry ? Methane Acetylene Styrene Ethylene Methane Acetylene Styrene Ethylene ANSWER DOWNLOAD EXAMIANS APP
Chemistry The three elements most needed in common fertilisers are : Nitrogen, Potassium and Phosphorous Calcium, Phosphorous and Potassium Phosphorous, Sodium and Nitrogen Sulphur, Phosphorous and Sodium Nitrogen, Potassium and Phosphorous Calcium, Phosphorous and Potassium Phosphorous, Sodium and Nitrogen Sulphur, Phosphorous and Sodium ANSWER DOWNLOAD EXAMIANS APP
Chemistry The elements with atomic numbers 9, 17, 35, 53, 85 are all Heavy metals Halogens Light metals Noble gases Heavy metals Halogens Light metals Noble gases ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following metals occurs in free state ? Zinc Iron Lead Copper Zinc Iron Lead Copper ANSWER DOWNLOAD EXAMIANS APP
Chemistry The material used in the manufacture of lead pencil is Graphite Mica Carbon Lead Graphite Mica Carbon Lead ANSWER DOWNLOAD EXAMIANS APP
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