Chemistry Which one of the following is used for dating very old objects of archaeological importance? Carbon-14 Radium Phosphorus-31 Tritium Carbon-14 Radium Phosphorus-31 Tritium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is not a derivative of barbituric acid Equanil Veronal Amytal Nembutal Equanil Veronal Amytal Nembutal ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which is the purest commercial form of iron ? Wrought iron Stainless steel Steel Pig iron Wrought iron Stainless steel Steel Pig iron ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is used as an anti-freeze for the automobile engines ? Ethanol Methanol Ethylene glycol Propyl alcohol Ethanol Methanol Ethylene glycol Propyl alcohol ANSWER DOWNLOAD EXAMIANS APP
Chemistry Green house effect is accelerated by Rapid industrialization All of these Increased transportation activity Deforestation Rapid industrialization All of these Increased transportation activity Deforestation ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which among the following is used to dilute oxygen in the gas cylinders used by divers ? Helium Krypton Neon Argon Helium Krypton Neon Argon ANSWER DOWNLOAD EXAMIANS APP
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