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JEE Main & Advanced JEE Main Paper (Held on 10-4-2019 Afternoon)

  • question_answer
    The number of pentagons in \[{{C}_{60}}\]and trigons (triangles) in white phosphorus, respectively, are: [JEE Main 10-4-2019 Afternoon]

    A) 12 and 3                     

    B) 20 and 4

    C) 12 and 4

    D) 20 and 3

    Correct Answer: C

    Solution :

                Total No. of pentagons in \[{{C}_{60}}=12\] Total no. of trigons (triangles) in white phosphorus \[({{P}_{4}})=4\]         


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