this is my original handwriting.
hope it will be nice
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Wowww
Sooo beautiful ❤️❤️❤️❤️❤️❤️❤️❤️
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The presence of protein is tested by the Biuret test for proteins. The Biurette reagent made of sodium hydroxide and copper (II) sulphate helps in determining the presence of protein in a sample.
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