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Some Basic Concepts of Chemistry · 2022 · 26 Jul · Shift 2

2 Chemistry questions from this JEE Main paper
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Some Basic Concepts of Chemistry · 2022 · 26 Jul · Shift 2

2 Chemistry questions from this JEE Main paper

  1. Q1.Hemoglobin contains 0.34% of iron by mass. The number of Fe atoms in 3.3 g of hemoglobin is (Given: Atomic mass of Fe is 56u,NA​=6.022×1023 mol−1.)
    Chemistry · Some Basic Concepts of Chemistry · MCQ
  2. Q19.A 100 mL solution of CH3​CH2​MgBr on treatment with methanol produces 2.24 mL of a gas at STP. The weight of gas produced is ​ mg. [nearest integer]
    Chemistry · Some Basic Concepts of Chemistry · Numerical