What is the composition of stainless steel ?
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Define what is oxidation and reduction reaction?
How is hardness of water caused?
What is General Properties of Acids ?
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What is given off on burning a candle ?
how will you jug that the give organic compound is pure or not ??????
Why graphite rod is used in nuclear reactor?
Explain the following ? Matter, Element, Atom, Compound, Molecule, Mixture, Physical change, Chemical change
What is density of a liquid?
Explain the Electrolytic Method ?
what is the formula of petrol
why helium does not react with other elements?
What is ignition point ?