Chemistry · 2021
JEE Main · 18 March 2021, Shift 1 · Q59
\ \ \ \ grams of 3-Hydroxy propanal ( MW =74) must be dehydrated to produce 7.8 g of acrolein ( MW =56)( C_3 H_4 O ) if the percentage yield is 64.…
\_\_\_\_ grams of $\displaystyle 3$-Hydroxy propanal $\displaystyle (\mathrm{MW}=74)$ must be dehydrated to produce $\displaystyle 7.8$ g of acrolein $\displaystyle (\mathrm{MW}=56)\left(\mathrm{C}_3 \mathrm{H}_4 \mathrm{O}\right)$ if the percentage yield is $\displaystyle 64$ . (Round off to the Nearest Integer).
[Given : Atomic masses : $\displaystyle \mathrm{C}: 12.0 \mathrm{u}, \mathrm{H}: 1.0 \mathrm{u}, \mathrm{O}: 16.0 \mathrm{u}$ ]
Official answer
16
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JEE Main 2021 Chemistry question, with the answer from NTA’s final answer key. Where our answers come from.