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Practicing real exam questions helps you understand the exam pattern, improve accuracy, and boost your JEE score. Perfect for students aiming for top ranks in IIT-JEE.","tags","jee main joint entrance examination india","version","vip","location",{"_391":392,"_393":394},"type","Point","coordinates",[395,396],79.0888,21.1466,"in","priority",12,"createdOn",1756744302186,"updatedOn","questionsCount",24748,"courseCount",9,"examKey","questionData",{"_369":410,"_411":412,"_413":414,"_278":416,"_417":418,"_263":370,"_419":420,"_110":421,"_422":423,"_424":425},"o86NVFntit7msgqfHXKgolS4a5JbOU","q","__________ grams of 3-Hydroxy propanal (MW = 74) must be dehydrated to produce 7.8 g of acrolein (MW = 56) (C₃H₄O) if the percentage yield is 64. (Round off to the Nearest Integer).

[Given : Atomic masses : C : 12.0 u, H : 1.0 u, O : 16.0 u ]","ans",[415],"16","2021 - 18th March Morning Shift","course","chemistry","exp"," $\"JEE$

$$ \\therefore $$ Mass of acrolein = $$\\left[ {{x \\over {74}} \\times 0.64} \\right] \\times 56 = 78$$

$$ \\Rightarrow x = 16.1gm \\simeq 16gm$$",19,"t","exact_and","points",1.5,"19","initComment","initReply","actionData","errors"]

JEE MAIN - Chemistry (2021 - 18th March Morning Shift - No. 19)

Explanation

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