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What is Non-metal?
What is Non-Polar Molecule?
What is Non-Primitive or Centred Unit Cell?
What is Non-Stoichiometric Defect?
What is Nontoxic?
What is Nordhausen Acid?
What is Normal Melting point or Normal Freezing point of the Substance?
What is Nucleic Acid?
What is Nucleophilic?
What is Oblatoid?