Chemistry Rutherford’s scattering experiment proved the presence of Atoms in all matter Neutrons in atoms Electrons in atoms Nucleus in atoms Atoms in all matter Neutrons in atoms Electrons in atoms Nucleus in atoms ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which gas emitted by power stations causes acid rain? Carbon dioxide Helium Nitrogen Sulphur dioxide Carbon dioxide Helium Nitrogen Sulphur dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry The metallic constituents of hard water are : Iron, tin and calcium Magnesium, calcium and tin Magnesium, tin and iron Calcium, magnesium and iron Iron, tin and calcium Magnesium, calcium and tin Magnesium, tin and iron Calcium, magnesium and iron ANSWER DOWNLOAD EXAMIANS APP
Chemistry The number of waves made by an electron moving in an orbit having maximum magnetic quantum number is +3 4 2 zero 5 4 2 zero 5 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is not a donor atom? Antimony Arsenic Phosphorus Aluminium Antimony Arsenic Phosphorus Aluminium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Ozone saves the biosphere by absorbing high energy radiations called ________ . X–rays Infra-red (IR) Gamma rays Ultraviolet rays (UV) X–rays Infra-red (IR) Gamma rays Ultraviolet rays (UV) ANSWER DOWNLOAD EXAMIANS APP
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