Chemistry Total number of elements in the Periodic table 118 127 112 115 118 127 112 115 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is used for dating very old objects of archaeological importance? Tritium Phosphorus-31 Carbon-14 Radium Tritium Phosphorus-31 Carbon-14 Radium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Iron is extracted from Cinnabar Bauxite Dolomite Haematite Cinnabar Bauxite Dolomite Haematite ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is not a nitrogenous fetiliser? Ammonium sulphate Ammonium nitrate Superphosphate Urea Ammonium sulphate Ammonium nitrate Superphosphate Urea ANSWER DOWNLOAD EXAMIANS APP
Chemistry The atomic number of carbon is 6 and its atomic mass is 12. How many are there protons in the nucleus of carbon ? 18 12 Zero 6 18 12 Zero 6 ANSWER DOWNLOAD EXAMIANS APP
Chemistry What is Zeolite? Dehydrated Aluminosilicate Hydrated Aluminosilicate Hydrated Calcium Sulphate Dehydrated Calcium Sulphate Dehydrated Aluminosilicate Hydrated Aluminosilicate Hydrated Calcium Sulphate Dehydrated Calcium Sulphate ANSWER DOWNLOAD EXAMIANS APP
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