Chemistry Questions
Q. Which rays of sunlight is absorbed by carbon dioxide molecules in atmosphere?
View SolutionQ. Which gas is released when sodium reacts with water?
View SolutionQ. The reaction in which energy is absorbed are known as _.
View SolutionQ. If a substance gains oxygen & loses hydrogen during a reaction, it is _.
View SolutionQ. The substances whose odour changes in acidic or basic media are called _.
View SolutionQ. Tooth decay starts when the pH of the mouth is lower than __.
View SolutionQ. Who discovered Deuterium?
View SolutionQ. First artificially synthesised fibre?
View SolutionQ. Which is the element used in dials of clocks?
View SolutionQ. Which chemical is used in moth ball?
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