Chemistry Which one of the following is a greenhouse gas ? Nitrogen Helium Carbon dioxide Sulphur dioxide Nitrogen Helium Carbon dioxide Sulphur dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Atoms of different elements have Different atomic number and different number of valence electrons Same atomic number and same electronic configuration Same number of electrons and neutrons Different atomic number and same eletronic configu-ration Different atomic number and different number of valence electrons Same atomic number and same electronic configuration Same number of electrons and neutrons Different atomic number and same eletronic configu-ration ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which among the following elements is found in maximum percentage in the human body ? Oxyzen Hydrogen Carbon Nitrozen Oxyzen Hydrogen Carbon Nitrozen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following chemicals is responsible for depletion of ozone layer in the atmosphere? Chlorofluorocarbons Sulphur dioxide Carbon dioxide Nitrous oxide Chlorofluorocarbons Sulphur dioxide Carbon dioxide Nitrous oxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry The scientist who experimentally proved the existance of positron is Bethe Bohr Anderson Fermi Bethe Bohr Anderson Fermi ANSWER DOWNLOAD EXAMIANS APP
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