Chemistry Spontaneous change is one in there is: A lowering of free energy A lowering of entropy An increase in Internal energy Increase in free energy A lowering of free energy A lowering of entropy An increase in Internal energy Increase in free energy ANSWER DOWNLOAD EXAMIANS APP
Chemistry A potato tuber has been cut into two halves. A few drops of iodine solution are placed on the cut surface of one of the halves. What colour change will be noticed? From pink to blue-green From brown to orange-red From blue to pink From brown to blue-black From pink to blue-green From brown to orange-red From blue to pink From brown to blue-black ANSWER DOWNLOAD EXAMIANS APP
Chemistry The pair of compounds used as anaesthetic in medicines : Nitrogen dioxide, ether Ether, Ammonia Chloroform, Nitrogen dioxide Nitrous oxide, Chloroform Nitrogen dioxide, ether Ether, Ammonia Chloroform, Nitrogen dioxide Nitrous oxide, Chloroform ANSWER DOWNLOAD EXAMIANS APP
Chemistry The element with highest ionization potential is Oxygen Carbon Boron Helium Oxygen Carbon Boron Helium ANSWER DOWNLOAD EXAMIANS APP
Chemistry The number of d-electrons in Fe2+ (Z = 26) is not equal to that of s-electrons in Mg(Z = 12) p-electrons in CI(Z = 17) p-electrons in Ne(Z = 10) d-electrons in Fe(Z = 26) s-electrons in Mg(Z = 12) p-electrons in CI(Z = 17) p-electrons in Ne(Z = 10) d-electrons in Fe(Z = 26) ANSWER DOWNLOAD EXAMIANS APP
Chemistry Vinegar made by fermentation from cane sugar contains Acetic acid Lactic acid Citric acid Palmitic acid Acetic acid Lactic acid Citric acid Palmitic acid ANSWER DOWNLOAD EXAMIANS APP
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