Chemistry Which one of the following is used for dating very old objects of archaeological importance? Phosphorus-31 Radium Tritium Carbon-14 Phosphorus-31 Radium Tritium Carbon-14 ANSWER DOWNLOAD EXAMIANS APP
Chemistry When formaldehyde and potassium hydroxide are heated, we get Methane Acetylene Methyl alcohol Ethyl formate Methane Acetylene Methyl alcohol Ethyl formate ANSWER DOWNLOAD EXAMIANS APP
Chemistry The value of gas constant R in Ergs deg–1 mole–1 is 8.341 × 107 8.314 × 107 8.413 × 107 4.183 × 107 8.341 × 107 8.314 × 107 8.413 × 107 4.183 × 107 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which is known as carbolic acid? Phenol Oxalic acid Ethanol Acetic acid Phenol Oxalic acid Ethanol Acetic acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is a metallic ore ? Quartz Mica Feldspar Galena Quartz Mica Feldspar Galena ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following metals occurs in free state ? Copper Lead Iron Zinc Copper Lead Iron Zinc ANSWER DOWNLOAD EXAMIANS APP
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