Chemistry Which metal does not undergo corrosion due to the formation of oxide layer? Copper Iron Aluminium Zinc Copper Iron Aluminium Zinc ANSWER DOWNLOAD EXAMIANS APP
Chemistry The polymerisation of which often following is used in manufacturing of polythene in industry ? Methane Styrene Acetylene Ethylene Methane Styrene Acetylene Ethylene ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is chiefly present in LPG (Liquefied Petroleum Gas) ? Butane Propane Methane Ethane Butane Propane Methane Ethane ANSWER DOWNLOAD EXAMIANS APP
Chemistry Nitrogen forms a variety of compounds in all oxidation states ranging from –3 to + 6 –3 to + 4 –3 to + 3 –3 to + 5 –3 to + 6 –3 to + 4 –3 to + 3 –3 to + 5 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The gas which is mainly responsible for the green house effect is: Carbon dioxide Ozone Oxygen Carbon monoxide Carbon dioxide Ozone Oxygen Carbon monoxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following compounds is commonly used as an antiseptic in mouthwashes and toothpastes ? Sodium chloride Borax Saltpetre Hydrogen peroxide Sodium chloride Borax Saltpetre Hydrogen peroxide ANSWER DOWNLOAD EXAMIANS APP
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