Chemistry The first organic compound synthesised in the laboratory was Urea Glucose Lactic acid Uric acid Urea Glucose Lactic acid Uric acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry Oxygen which is vital for life is a product of photosynthesis and comes from Carbonates from soil Water Carbon dioxide Oxides of mineral elements Carbonates from soil Water Carbon dioxide Oxides of mineral elements ANSWER DOWNLOAD EXAMIANS APP
Chemistry Rock salt is a mineral containing Magnesium Iron Potassium Sodium Magnesium Iron Potassium Sodium 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 ? Zero 18 6 12 Zero 18 6 12 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Cement is formed by strongly heating a mixture of Clay and graphite Limestone and clay Chalk and graphite Limestone and graphite Clay and graphite Limestone and clay Chalk and graphite Limestone and graphite ANSWER DOWNLOAD EXAMIANS APP
Chemistry The element used in the manufacture of safety matches is Phosphorous Sulphur Magnesium Silicon Phosphorous Sulphur Magnesium Silicon ANSWER DOWNLOAD EXAMIANS APP
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