MHT CET · Chemistry · Some Basic Concepts of Chemistry
What is value of percent atom economy when reactants having sum of formula weight 78 u results in the formation of a product with formula weight 65 u ?
- A \(70 \%\)
- B \(78 \%\)
- C \(83 \%\)
- D \(65 \%\)
Answer & Solution
Correct Answer
(C) \(83 \%\)
Step-by-step Solution
Detailed explanation
\(\% \text { atom economy}\)
\(=\frac{\text { Formula weight of the desired product }}{\text { Sum of formula weight of all the }}\) \(\times 100\)
\(\text {reactants used in the reaction }\)
\(=\frac{65 \mathrm{u}}{78 \mathrm{u}} \times 100=83 \%\)
\(=\frac{\text { Formula weight of the desired product }}{\text { Sum of formula weight of all the }}\) \(\times 100\)
\(\text {reactants used in the reaction }\)
\(=\frac{65 \mathrm{u}}{78 \mathrm{u}} \times 100=83 \%\)
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