Chemistry Which one is not a pure form of carbon Coal Diamond Gold Graphite Coal Diamond Gold Graphite ANSWER DOWNLOAD EXAMIANS APP
Chemistry Oxide of sulphur present in the atmosphere are washed down by rains to cause : Depletion of fossil fuel reserves Eutrophication in lakes Lowering of pH of soil Industrial smog formation Depletion of fossil fuel reserves Eutrophication in lakes Lowering of pH of soil Industrial smog formation ANSWER DOWNLOAD EXAMIANS APP
Chemistry The number of hydrogen bonds between guanine and cytosine in DNA is 2 3 4 1 2 3 4 1 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is not a nitrogenous fetiliser? Ammonium sulphate Superphosphate Ammonium nitrate Urea Ammonium sulphate Superphosphate Ammonium nitrate Urea ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which type of fire extinguisher is used for petroleum fire ? Powder type None of these Soda acid type Foam type Powder type None of these Soda acid type Foam type ANSWER DOWNLOAD EXAMIANS APP
Chemistry Why is water not suitable for putting out a petrol fire ? 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 heat required for combustion of petrol is very low The oxygen content of water is isolated by petrol and thus it helps in burning 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 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
EXAMIANS