Chemistry The elements with atomic numbers 9, 17, 35, 53, 85 are all Light metals Noble gases Halogens Heavy metals Light metals Noble gases Halogens Heavy metals ANSWER DOWNLOAD EXAMIANS APP
Chemistry Metal are good conductors, because They contain reflecting surface They contain free electrons The molecules in them collide very freely The molecules in them are very close to each other They contain reflecting surface They contain free electrons The molecules in them collide very freely The molecules in them are very close to each other ANSWER DOWNLOAD EXAMIANS APP
Chemistry The most abundant rare gas in the atmosphere is Ne Xe Ar He Ne Xe Ar He ANSWER DOWNLOAD EXAMIANS APP
Chemistry Substance used as an anti freeze in radiators of automobiles is : Ethyl alcohol and H2O Methyl alcohol and H2O Methyl alcohol Ethyl alcohol Ethyl alcohol and H2O Methyl alcohol and H2O Methyl alcohol Ethyl alcohol ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one amongst the following is not a Green House gas? Nitrogen Chloro fluoro carbons Carbon dioxide Carbon Monoxide Nitrogen Chloro fluoro carbons Carbon dioxide Carbon Monoxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Oxide of sulphur present in the atmosphere are washed down by rains to cause : Depletion of fossil fuel reserves Eutrophication in lakes Lowering of pH of soil Industrial smog formation Depletion of fossil fuel reserves Eutrophication in lakes Lowering of pH of soil Industrial smog formation ANSWER DOWNLOAD EXAMIANS APP
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