JEE Main & Advanced Chemistry Organic Chemistry: Some Basic Principles & Techniques Question Bank Chemical analysis of organic compounds

  • question_answer The percentage of \[{{N}_{2}}\] in urea is about [KCET (Med.) 2001]

    A) 18.05

    B) 28.29

    C) 46.66

    D) 85.56

    Correct Answer: C

    Solution :

    Urea \[(N{{H}_{2}}CON{{H}_{2}})\]has molecular wt. 60 and wt. of Nitrogen is 28 In 60 gm of urea nitrogen present = 28 gm In 100 gm of urea nitrogen present \[={{({{C}_{3}}{{H}_{5}}{{O}_{2}})}_{2}}={{C}_{6}}{{H}_{10}}{{O}_{4}}\]

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