Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
MHT CET202411 May 2024Morning ShiftChemistryEnvironmental ChemistryActual

What is the percentage atom economy when formula weight of product obtained is 70 u and the sum of formula weight of reactant is 140 u ?

Options

  1. A30 %
  2. B35 %
  3. C50 %
  4. D75 %

Correct answer

C. 50 %

Step-by-step solution

aligned & % atom economy & = Formula weight of the desired product Sum of formula weight of all the 100 & reactants used in the reaction & = 70 u 140 u 100=50 % aligned

Practice Environmental Chemistry on Quantrex Academy →

More from Environmental Chemistry

Which of the following is a green alternative for dry cleaning solvents? 2026Which of the following statements is not correct ? 2025Which one of the following gases is the major contributor to global warming ? 2025The incorrect statement from the following is 2025Which one of the following statements related to photochemical smog is not correct? 2025Match the following List - I (Pollutant concentration limit in water) List - II (Effect) Pb >50 ppb Brown mottling of teeth SO ₄²⁻>500 ppm 'Blue baby' syndrome NO ₃⁻>50 ppm Laxativ 2025Which of the following when present in excess in drinking water causes the disease methemoglobinemia? 2025MATCH THE FOLLOWING: List - I List - II (Metal in drinking water) (Maximum prescribed concentration in ppm) A) Mn I) 0.05 B) Zn II) 3.0 C) Cd III) 0.005 D) Cu IV) 5.0 2025 Full Environmental Chemistry list All MHT CET PYQs