What is dextro-rotatory and levo-rotatory?
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Why does oil thrown on rough sea make it calmer ?
What is the difference between gas and vapour?
why PH scale range is 14? why it is not less or not greater than 14? solution of HCl or hydrogen containing liquid has a PH. but if the solution is KMnO4 here not hydrogen power does it PH? explain plz....
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Why cooling is produced when a wet ?khus khus? screen is hung on the doors and windows ?
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What makes a molecule into organic molecule?
Why ph scale range is 14? Why it is not less or not greater than 14? Solution of hcl or hydrogen containing liquid has a ph. But if the solution is kmno4 here nothydrogen power does it ph?
Why does a pond of clear water appear less deep than it really is?