Chemistry Submarines move under water. They have engines that run on Petrol and oxygen Batteries Diesel Steam Petrol and oxygen Batteries Diesel Steam ANSWER DOWNLOAD EXAMIANS APP
Chemistry When lime juice is dropped on baking soda, brisk effervescence takes place because the gas evolved is Hydrogen All of them Oxygen Carbon dioxide Hydrogen All of them Oxygen Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Silica gel is a Delicious food Moisturizer Flavouring agent Drying agent Delicious food Moisturizer Flavouring agent Drying agent ANSWER DOWNLOAD EXAMIANS APP
Chemistry Cooking gas is a mixture of Carbon dioxide and oxygen Methane and ethylene Butane and propane Carbon monoxide and carbon dioxide Carbon dioxide and oxygen Methane and ethylene Butane and propane Carbon monoxide and carbon dioxide 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 Global warming is mainly due to accumulation of Oxides of nitrogen Carbon dioxide Oxides of sulphur Carbon monoxide Oxides of nitrogen Carbon dioxide Oxides of sulphur Carbon monoxide ANSWER DOWNLOAD EXAMIANS APP
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