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Q.
Number of grams of bromine that will completely react with $5.0 \,g$ of pent-$1$-ene is _______$\times 10^{-2} g$. (Atomic mass of $Br =80\, g / mol$ ) [Nearest Integer)
JEE MainJEE Main 2022Some Basic Concepts of Chemistry
Solution:
moles of $Br _{2}=$ moles of $C _{5} H _{10}$
$\Rightarrow \frac{ W }{160}=\frac{5}{70} $
$\Rightarrow W =\frac{5 \times 160}{70} g$
$=11.428 \,g $
$=1142.8 \times 10^{-2} g \approx 1143 \times 10^{-2} g$
