JEE Mains · Chemistry · STD 11 - 1. Some basic concept of chemistry
Number of grams of bromine that will completely react with \(5.0\, g\) of pent\(-1-\)ene is \(......10^{-2} \,g\). (Atomic mass of \(Br =80\, g / mol\) ) [Nearest Integer)
- A \(1143\)
- B \(1500\)
- C \(951\)
- D \(442\)
Answer & Solution
Correct Answer
(A) \(1143\)
Step-by-step Solution
Detailed explanation
moles of \(Br _{2}=\) moles of \(C _{5} H _{10}\) \(\Rightarrow \frac{ w }{160}=\frac{5}{70}\) \(\Rightarrow w =\frac{5 \times 160}{70}\, g\) \(=11.428 \,g\) \(=1142.8 \times 10^{-2}\, g\) \(\approx 1143 \times 10^{-2}\, g\)
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