Chemistry Terylene is a condensation polymer of ethylene glycol and which acid? Phthalic acid Benzoic Acid Salicylic acid Terephthalic acid Phthalic acid Benzoic Acid Salicylic acid Terephthalic acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which metal does not undergo corrosion due to the formation of oxide layer? Copper Zinc Iron Aluminium Copper Zinc Iron Aluminium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Why is water not suitable for putting out a petrol fire ? The heat required for combustion of petrol is very low Petrol is too inflammable to be extinguished by water Water, being heavy, slips below petrol which thus remains in contact with air and burns The oxygen content of water is isolated by petrol and thus it helps in burning The heat required for combustion of petrol is very low Petrol is too inflammable to be extinguished by water Water, being heavy, slips below petrol which thus remains in contact with air and burns The oxygen content of water is isolated by petrol and thus it helps in burning ANSWER DOWNLOAD EXAMIANS APP
Chemistry The chief source for the production of nitrogeneous fertilizers is : Ammonia Nitrogen dioxide Nitrogen Nitric acid Ammonia Nitrogen dioxide Nitrogen Nitric acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry Substance used as an anti freeze in radiators of automobiles is : Ethyl alcohol Methyl alcohol and H2O Methyl alcohol Ethyl alcohol and H2O Ethyl alcohol Methyl alcohol and H2O Methyl alcohol Ethyl alcohol and H2O ANSWER DOWNLOAD EXAMIANS APP
Chemistry The following are the half lives of four active isotopes. Which one of the following is the most dangerous to handle? 3 billion years 100 years 0.01 minute 13 days 3 billion years 100 years 0.01 minute 13 days ANSWER DOWNLOAD EXAMIANS APP
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