Chemistry The third shell of an atom can have a maximum of ______ electrons 13 15 18 21 13 15 18 21 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Nitric acid does not react with Iron Gold Copper Zinc Iron Gold Copper Zinc ANSWER DOWNLOAD EXAMIANS APP
Chemistry Two moles of an ideal gas expand freely into vacuum. The work done by the gas is 4J 2J Infinity 4J 2J Infinity ANSWER DOWNLOAD EXAMIANS APP
Chemistry The purest form of Iron is : Steel Cast iron Pig iron Wrought iron Steel Cast iron Pig iron Wrought iron ANSWER DOWNLOAD EXAMIANS APP
Chemistry The material used in solar cells contains Caesium Tin Thallium Silicon Caesium Tin Thallium Silicon ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following chemicals is responsible for depletion of ozone layer in the atmosphere? Nitrous oxide Chlorofluorocarbons Carbon dioxide Sulphur dioxide Nitrous oxide Chlorofluorocarbons Carbon dioxide Sulphur dioxide ANSWER DOWNLOAD EXAMIANS APP