Which type of flame is obtained by complete combination of fuel?
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The neutral flame has a one-to-one ratio of acetylene and oxygen. It obtains additional oxygen from the air and provides complete combustion.
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Stoichiometric or perfect combustion is obtained by mixing and burning exactly the correct proportions of fuel and oxygen so that no oxygen remains at the end of the reaction. If too much oxygen is supplied, the mixture is lean and the reaction is oxidizing. This results in a flame that is relatively shorter.
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