What is structure of urea?
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What is Purposive Sampling? Purposive sampling, also known as judgmental, selective, or subjective sampling, is a form of non-probability sampling in which researchers rely on their own judgment when choosing members of the population to participate in their surveys.
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Urea is a nitrogenous compound formed in the liver. It has a chemical formula of CH4N2O. It is also known as Carbamide or Ureophil. ... This organic compound has two NH2 groups connected by a functional group carbonyl. Urea dissolves in water and is non-toxic.
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