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Some Basic Concepts of Chemistry · 2025 · 23 Jan · Shift 1

2 Chemistry questions from this JEE Main paper
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Some Basic Concepts of Chemistry · 2025 · 23 Jan · Shift 1

2 Chemistry questions from this JEE Main paper

  1. Q11.2.8×10−3 mol of CO2​ is left after removing 1021 molecules from its 'x' mg sample. The mass of CO2​ taken initially is Given: NA​=6.02×1023 mol−1…
    Chemistry · Some Basic Concepts of Chemistry · MCQ
  2. Q25.During " S " estimation, 160 mg of an organic compound gives 466 mg of barium sulphate. The percentage of Sulphur in the given compound is ​ %. (Given molar mass in g mol−1 of Ba:137, S:32,O:16…
    Chemistry · Some Basic Concepts of Chemistry · Numerical