Chemistry Pyrethrin used in mosquito coil is obtained from A seed plant A fungus A bacterium An insect A seed plant A fungus A bacterium An insect ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is used to iodise common salt ? Sodium iodide Iodine Potassium iodate Potassium iodide Sodium iodide Iodine Potassium iodate Potassium iodide ANSWER DOWNLOAD EXAMIANS APP
Chemistry The most electronegative element among the following is sodium bromine oxygen fluorine sodium bromine oxygen fluorine ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is not a precious/semi-precious stone? Sapphire Ruby Emerald Pearl Sapphire Ruby Emerald Pearl ANSWER DOWNLOAD EXAMIANS APP
Chemistry Magnalium is an alloy of Magnesium and Tin Aluminium and Magnesium Manganese and Magnesium Aluminium and Zinc Magnesium and Tin Aluminium and Magnesium Manganese and Magnesium Aluminium and Zinc ANSWER DOWNLOAD EXAMIANS APP
Chemistry Why is water not suitable for putting out a petrol fire ? Water, being heavy, slips below petrol which thus remains in contact with air and burns Petrol is too inflammable to be extinguished by water The heat required for combustion of petrol is very low The oxygen content of water is isolated by petrol and thus it helps in burning Water, being heavy, slips below petrol which thus remains in contact with air and burns Petrol is too inflammable to be extinguished by water The heat required for combustion of petrol is very low The oxygen content of water is isolated by petrol and thus it helps in burning ANSWER DOWNLOAD EXAMIANS APP
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