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QJEEM21Chc176: JEE Main 2021 Chemistry - Class 11 JEEM21Chc176 Solution: In the above reaction, 3.9 g of benzene on nitration gives 4.92 …

JEE Main 2021 (Online) 17th March Morning Shift Chemistry - Practical Organic Chemistry Question 57 English
In the above reaction, 3.9 g of benzene on nitration gives 4.92 g of nitrobenzene. The percentage yield of nitrobenzene in the above reaction is ________%. (Round off to the Nearest Integer).

(Given atomic mass : C : 12.0 u, H : 1.0 u, O : 16.0 u, N : 14.0 u)

Step-by-Step Verified Solution

JEE Main 2021 (Online) 17th March Morning Shift Chemistry - Practical Organic Chemistry Question 57 English Explanation
Weight of (C6H5NO2)Theoretical = 3.978×123{{{3.9} \over {78}} \times 123} = 6.15 g

% yield of reaction = WactualWtheoretical×100=4.926.15×=80%{{{W_{actual}}} \over {{W_{theoretical}}}} \times 100 = {{4.92} \over {6.15}} \times = 80\%

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