Chemistry Which of the following is a natural polymer? Nylon Starch Bakelite Polythene Nylon Starch Bakelite Polythene ANSWER DOWNLOAD EXAMIANS APP
Chemistry The substance most commonly used as a food preservative is Acetic acid Tartaric acid Sodium carbonate Sodium salt of benzoic acid Acetic acid Tartaric acid Sodium carbonate Sodium salt of benzoic acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry When water itself combines chemically with some element or mineral it is called Hydration Carbonation Oxidation Desilication Hydration Carbonation Oxidation Desilication ANSWER DOWNLOAD EXAMIANS APP
Chemistry Freon' used as refrigerants is chemically Fluorinated hydrocarbon Chlorinated hydrocarbon Chlorofluoro hydrocarbon Fluorinated aromatic compound Fluorinated hydrocarbon Chlorinated hydrocarbon Chlorofluoro hydrocarbon Fluorinated aromatic compound ANSWER DOWNLOAD EXAMIANS APP
Chemistry The compound used in pricklyheat powder to prevent excessive sweating is Boric acid Phosphoric acid Carbonic acid Sulphuric acid Boric acid Phosphoric acid Carbonic acid Sulphuric acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry Acid rain is caused due to pollution of atmosphere by Oxides of carbon and nitrogen Oxides of nitrogen and sulphur Oxides of nitrogen and phosphorous None of these Oxides of carbon and nitrogen Oxides of nitrogen and sulphur Oxides of nitrogen and phosphorous None of these ANSWER DOWNLOAD EXAMIANS APP
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