Chemistry Which one of the following is not a cause for present global warming and climate change ? Methane emission Carbondioxide emission Deforstation CFC emission Methane emission Carbondioxide emission Deforstation CFC emission ANSWER DOWNLOAD EXAMIANS APP
Chemistry The percentage of oxygen in air is approximately 1 0.78 0.01 0.21 1 0.78 0.01 0.21 ANSWER DOWNLOAD EXAMIANS APP
Chemistry A potato tuber has been cut into two halves. A few drops of iodine solution are placed on the cut surface of one of the halves. What colour change will be noticed? From brown to blue-black From blue to pink From brown to orange-red From pink to blue-green From brown to blue-black From blue to pink From brown to orange-red From pink to blue-green ANSWER DOWNLOAD EXAMIANS APP
Chemistry The gas which emits from rice field is Nitrogen Ethane All of these Methane Nitrogen Ethane All of these Methane ANSWER DOWNLOAD EXAMIANS APP
Chemistry The trans-uranium elements are the chemical elements with atomic numbers greater than 92 96 86 89 92 96 86 89 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which gas is used for converting vegetable oils into saturated fats ? SO2 O2 Cl2 H2 SO2 O2 Cl2 H2 ANSWER DOWNLOAD EXAMIANS APP
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