Chemistry Which one is the lightest element in the periodic table Oxygen Hydrogen Helium Carbon Oxygen Hydrogen Helium Carbon ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is most electronegative Silicon Carbon Tin Lead Silicon Carbon Tin Lead ANSWER DOWNLOAD EXAMIANS APP
Chemistry Periodic table contains how many groups 17 16 19 18 17 16 19 18 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Total number of elements in the Periodic table 127 112 115 118 127 112 115 118 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The components of water can be separated by Both A and B Physical methods Chemical methods They can not be separated Both A and B Physical methods Chemical methods They can not be separated ANSWER DOWNLOAD EXAMIANS APP