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Some Basic Concepts of Chemistry · 2021 · 16 Mar · Shift 1

3 Chemistry questions from this JEE Main paper
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Some Basic Concepts of Chemistry · 2021 · 16 Mar · Shift 1

3 Chemistry questions from this JEE Main paper

  1. Q16.Complete combustion of 750 g of an organic compound provides 420 g of CO2​ and 210 g of H2​O. The percentage composition of carbon and hydrogen in organic compound is 15.3 and ​ respectively. (Round off to the…
    Chemistry · Some Basic Concepts of Chemistry · Numerical
  2. Q18.2MnO4−​+bC2​O42−​+cH+→xMn2++yCO2​+zH2​O If the above equation is balanced with integer coefficients, the value of c is ​. (Round off to the Nearest Integer).
    Chemistry · Some Basic Concepts of Chemistry · Numerical
  3. Q19.A 6.50 molal solution of KOH (aq.) has a density of 1.89 g cm − 3. The molarity of the solution is ​ mol dm − 3. (Round off to the Nearest Integer). [Atomic masses : K : 39.0 u; O : 16.0 u; H : 1.0 u]
    Chemistry · Some Basic Concepts of Chemistry · Numerical