Chemistry An electrochemical cell which is used as a source of direct electrical current at constant voltage under standard conditions is called a : Power transmittor Battery Uninterrupted power supply (UPS) Generator Power transmittor Battery Uninterrupted power supply (UPS) Generator ANSWER DOWNLOAD EXAMIANS APP
Chemistry When iron rusts, its weight Remains the same First increases and then decreases Decreases Increases Remains the same First increases and then decreases Decreases Increases ANSWER DOWNLOAD EXAMIANS APP
Chemistry If all bullets could not be removed from gun shot injury of a man, it may cause poisoning by Mercury Arsenic Lead Iron Mercury Arsenic Lead Iron ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is a micro-element ? Nitrogen Oxygen Chlorine Hydrogen Nitrogen Oxygen Chlorine Hydrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Diamond is harder than graphite because of : Difference in layers of atoms Tetrahedral structure of diamond Difference of crystalline structures None of these Difference in layers of atoms Tetrahedral structure of diamond Difference of crystalline structures None of these ANSWER DOWNLOAD EXAMIANS APP
Chemistry Hardest allotrope of carbon is Coke Lamp black Diamond Graphite Coke Lamp black Diamond Graphite ANSWER DOWNLOAD EXAMIANS APP
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