How many electrons does benzene have?
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Explain extraction of ephedrine from a mineral block?
however ozone is havier than oxygen still ozone is up there in sky why?
In winter, on a cold morning, the cement feels colder to the foot than a carpet. Why ?
Why does a ball bounce ?
At what temperature does mercury freeze ?
Though the secondary cell can be recharged again and again, still they have a lifetime. Why?
Define Atom ?
Why Nitric acid can be stored in Aluminium containers?
What is OOS $ OOT ?
Why is the indicator eriochrome black(ebt) shows wine red color at the beginning and blue color at the end?
in Einstein's mass energy relation e=mc2 for what is c used or why is light required for reactions. Because the reactions are with help of neutrons
Why is ammonia-ammonium chloride buffer added?