Chemistry Ozone layer of atmosphere absorbs: Cosmic rays. Infra-red rays Ultraviolet rays All radiations of Light Cosmic rays. Infra-red rays Ultraviolet rays All radiations of Light ANSWER DOWNLOAD EXAMIANS APP
Chemistry Silicon is used in Transistors Solar energy devices All of these Semiconductors Transistors Solar energy devices All of these Semiconductors ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following fuels causes minimum environmental pollution? Hydrogen Diesel Kerosene Coal Hydrogen Diesel Kerosene Coal ANSWER DOWNLOAD EXAMIANS APP
Chemistry Surface water is a better source of drinking water because it is poor in Algae Bacteria Dust Arsenic Algae Bacteria Dust Arsenic ANSWER DOWNLOAD EXAMIANS APP
Chemistry Number of neutrons in an atom of hydrogen is One Zero Three Two One Zero Three Two ANSWER DOWNLOAD EXAMIANS APP
Chemistry The fundamental particles present in the nucleus of an atom are Neutron, electron Electron, proton Proton, neutron Neutron, positron Neutron, electron Electron, proton Proton, neutron Neutron, positron ANSWER DOWNLOAD EXAMIANS APP
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