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Some Basic Concepts of Chemistry · 2025 · 7 Apr · Shift 1

2 Chemistry questions from this JEE Main paper
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Some Basic Concepts of Chemistry · 2025 · 7 Apr · Shift 1

2 Chemistry questions from this JEE Main paper

  1. Q21.An organic compound weighing 500 mg , produced 220 mg of CO2​, on complete combustion. The percentage composition of carbon in the compound is ​%. (nearest integer) (Given molar mass in gmol−1…
    Chemistry · Some Basic Concepts of Chemistry · Numerical
  2. Q25.Thyroxine, the hormone has given below structure The percentage of iodine in thyroxine is ​ %. (nearest integer) (Given molar mass in gmol−1C:12,H:1,O:16, N:14,I:127… Includes diagram
    Chemistry · Some Basic Concepts of Chemistry · Numerical