What is the chemical formula of alum?
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What is the basicity/acidity of na2co3
What are the soldiers in an army, while crossing a bridge ordered to go out of step?
Explain the Hard and Soft water ?
What is quick lime ?
Which is heavier, water or ice ?
Explain extraction of ephedrine from a mineral block?
Of what substance are lead pencils made ?
What is meant by transmittance?
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
What is given off on burning a candle ?
Is water element or compound ?
What is the difference between gas and vapour?