Chemistry The purest form of Iron is : Pig iron Steel Wrought iron Cast iron Pig iron Steel Wrought iron Cast iron ANSWER DOWNLOAD EXAMIANS APP
Chemistry What is the element that is in the highest percentage in the composition of the earth ? Iron Oxygen Magnesium Silicon Iron Oxygen Magnesium Silicon ANSWER DOWNLOAD EXAMIANS APP
Chemistry The acid which fails to liberate carbon dioxide from sodium bicarbonate is : Acetic acid Formic acid Sulphuric acid Carbonic acid Acetic acid Formic acid Sulphuric acid Carbonic acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry The main active constituent of tea and coffee is nicotine caffeine chlorophyll aspirin nicotine caffeine chlorophyll aspirin ANSWER DOWNLOAD EXAMIANS APP
Chemistry The number of waves in n x 10th Bohr's orbit are n-2 n3 n n2 n-2 n3 n n2 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is not an addition polymer Nylon Polythene PVC Polystyrene Nylon Polythene PVC Polystyrene ANSWER DOWNLOAD EXAMIANS APP
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