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QJEEM22Ch1caf: JEE Main 2022 Chemistry - Class 12 JEEM22Ch1caf Solution: In the following reaction The yield for reaction I is and that…

In the following reaction

JEE Main 2022 (Online) 27th July Morning Shift Chemistry - Alcohols, Phenols and Ethers Question 66 English

The %\% yield for reaction I is 60%60 \% and that of reaction II is 50%50 \% . The overall yield of the complete reaction is __________ %\% . [nearest integer]

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JEE Main 2022 (Online) 27th July Morning Shift Chemistry - Alcohols, Phenols and Ethers Question 66 English Explanation 1
Let initial moles of reactant taken = n

Total moles obtained for benzene sulphonic acid (with % yield = 60%) = 0.6n

JEE Main 2022 (Online) 27th July Morning Shift Chemistry - Alcohols, Phenols and Ethers Question 66 English Explanation 2
Moles of benzene sulphonic acid before reaction II = 0.6n

Moles obtained for phenol (with % yield = 50%) = 0.6 × 0.5n = 0.3n

So over all % yield of complete reaction =0.3nn×100=30=\frac{0.3 \mathrm{n}}{\mathrm{n}} \times 100=30

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