Chemistry Charcoal is used in water treatment as a/an Absorbent Solvent Coagulant Adsorbent Absorbent Solvent Coagulant Adsorbent ANSWER DOWNLOAD EXAMIANS APP
Chemistry The substance most commonly used as a food preservative is Acetic acid Sodium carbonate Tartaric acid Sodium salt of benzoic acid Acetic acid Sodium carbonate Tartaric acid Sodium salt of benzoic acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry Cement is formed by strongly heating a mixture of Chalk and graphite Limestone and graphite Limestone and clay Clay and graphite Chalk and graphite Limestone and graphite Limestone and clay Clay and graphite ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is used for dating very old objects of archaeological importance? Radium Carbon-14 Phosphorus-31 Tritium Radium Carbon-14 Phosphorus-31 Tritium ANSWER DOWNLOAD EXAMIANS APP
Chemistry The gas which is mainly responsible for the green house effect is: Ozone Oxygen Carbon dioxide Carbon monoxide Ozone Oxygen Carbon dioxide Carbon monoxide ANSWER DOWNLOAD EXAMIANS APP
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