Chemistry Which among the following is found in chlorophyll ? Ca2+ Mg2+ Fe2+ A l3+ Ca2+ Mg2+ Fe2+ A l3+ ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is usually not an air-pollutant? Hydrocarbons Sulphur dioxide Carbon dioxide Nitrous oxide Hydrocarbons Sulphur dioxide Carbon dioxide Nitrous oxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry The purest form of water is Distilled water Ground water Rain water Tap water Distilled water Ground water Rain water Tap water ANSWER DOWNLOAD EXAMIANS APP
Chemistry Hardest allotrope of carbon is Coke Graphite Lamp black Diamond Coke Graphite Lamp black Diamond ANSWER DOWNLOAD EXAMIANS APP
Chemistry Urea is a Phosphatic fertilizer Potassium fertilizer Nitrogenous fertilizer Sodium fertilizer Phosphatic fertilizer Potassium fertilizer Nitrogenous fertilizer Sodium fertilizer ANSWER DOWNLOAD EXAMIANS APP
Chemistry All isotopes of the same element have ________ The same atomic number and the atomic mass The same atomic number but different atomic masses Different atomic numbers and the same atomic mass Different atomic numbers and different atomic mass The same atomic number and the atomic mass The same atomic number but different atomic masses Different atomic numbers and the same atomic mass Different atomic numbers and different atomic mass ANSWER DOWNLOAD EXAMIANS APP
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