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  4. In the given reaction, X + Y +3 Z leftarrows XYZ 3 if one mole of each of X and Y with 0.05 mol of Z gives compound XYZ 3. (Given: Atomic masses of X, Y and Z are 10,20 and 30 amu, respectively). The yield of XYZ 3 is g. (Nearest integer)

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Q. In the given reaction,
$X + Y +3 Z \rightleftarrows XYZ _3$
if one mole of each of $X$ and $Y$ with $0.05 \,mol$ of $Z$ gives compound $XYZ _3$. (Given : Atomic masses of $X, Y$ and $Z$ are $10,20$ and $30$ amu, respectively). The yield of $XYZ _3$ is
___$g$. (Nearest integer)

JEE MainJEE Main 2022Some Basic Concepts of Chemistry

Solution:

$\underset{1 \text{mol }}{ X }+\underset{ 1 \text{mol }}{ Y }+\underset{0.05 \text{mol} }{3 Z } \rightleftharpoons X Y Z _ { 3 }$
$Z$ is L.R.
$ \frac{0.05}{3}=1 \text { mole of } XYZ _3$
$ \text { Mass of } XYZ _3=\frac{0.05}{3} \times(10+20+30 \times 3)$
$ =2 g$