Chemistry Which one is the lightest element in the periodic table Oxygen Carbon Helium Hydrogen Oxygen Carbon Helium Hydrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry What is the chemical symbol of mercury Mr None of these Hg Mg Mr None of these Hg Mg ANSWER DOWNLOAD EXAMIANS APP
Chemistry The percentage of carbon in cost iron is : 3 to 5 0.5 to 1.5 6 to 8 0.01 to 0.25 3 to 5 0.5 to 1.5 6 to 8 0.01 to 0.25 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The ionisation energy of hydrogen atom in the ground state is x KJ. The energy required for an electron to jump from 2nd orbit to 3rd orbit is 5x/36 x/6 5x 7.2 x 5x/36 x/6 5x 7.2 x ANSWER DOWNLOAD EXAMIANS APP
Chemistry Nucleons are regarded as composites sub-particles known as Quarks Mesons Leptons Photons Quarks Mesons Leptons Photons ANSWER DOWNLOAD EXAMIANS APP
Chemistry The major component in the LPG is Propane Butane Methane Ethane Propane Butane Methane Ethane ANSWER DOWNLOAD EXAMIANS APP
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