MCQ
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)

  • A
    $1$
  • B
    $3$
  • C
    $0$
  • $2$

Answer

Correct option: D.
$2$
d
$\underset{1 mol }{ X }+\underset{1 mol }{ Y }+\underset{0.05 mol }{3 Z } \rightleftharpoons X Y Z _{ 3 }$

$Z$ is L.R.

$\frac{0.05}{3}=1\,mole$ of $XYZ _{3}$

Mass of $XYZ _{3}=\frac{0.05}{3} \times(10+20+30 \times 3)$

$=2\,g$

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