Chemistry Oxygen which is vital for life is a product of photosynthesis and comes from Carbon dioxide Carbonates from soil Water Oxides of mineral elements Carbon dioxide Carbonates from soil Water Oxides of mineral elements ANSWER DOWNLOAD EXAMIANS APP
Chemistry All isotopes of the same element have ________ Different atomic numbers and the same atomic mass The same atomic number and the atomic mass The same atomic number but different atomic masses Different atomic numbers and different atomic mass Different atomic numbers and the same atomic mass The same atomic number and the atomic mass The same atomic number but different atomic masses Different atomic numbers and different atomic mass ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which gas is used as fire extinguisher ? Carbon monoxide Carbon suboxide Sulphur dioxide Carbon dioxide Carbon monoxide Carbon suboxide Sulphur dioxide Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry The element used in the manufacture of safety matches is Magnesium Sulphur Silicon Phosphorous Magnesium Sulphur Silicon Phosphorous ANSWER DOWNLOAD EXAMIANS APP
Chemistry Litmus is obtained from An alga Lichen A fungus A bacterium An alga Lichen A fungus A bacterium ANSWER DOWNLOAD EXAMIANS APP
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