Chemistry The gas present in the stratosphere which filters out some of the sun's ultraviolet light and provides an effective shield against radiation damage to living things is ozone helium oxygen methane ozone helium oxygen methane ANSWER DOWNLOAD EXAMIANS APP
Chemistry The reaction intermediate formed during the preparation of diethylether from ethanol by treatment with H2SO4 is Carbocation Carbene Free radical Carbanion Carbocation Carbene Free radical Carbanion ANSWER DOWNLOAD EXAMIANS APP
Chemistry The oxidation number of nickel in K4[Ni(CN)4] is 8 4 Zero –4 8 4 Zero –4 ANSWER DOWNLOAD EXAMIANS APP
Chemistry If there is one million Mg2+ ions in MgCl2, how many chloride ions are there? Two million Half a million One million Ten million Two million Half a million One million Ten million ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following does not contain Silver ? Ruby Silver German Silver Lunar Caustic Horn Silver Ruby Silver German Silver Lunar Caustic Horn Silver ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following has greatest mass ? Electron Hydrogen nucleus Proton Neutron Electron Hydrogen nucleus Proton Neutron ANSWER DOWNLOAD EXAMIANS APP
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