Some Basic Concepts Of Chemistry Question 41
Question: 9 moles of “D” and 14 moles of E are allowed to react in a closed vessel according to given reactions. Calculate number of moles of B formed in the end of reaction, if 4 moles of G are present in reaction vessel. (Percentage yield of reaction is mentioned in the reaction)
Step-1 $ 3D+4E\xrightarrow{80 percent}~5C+A $ Step-2 $ 3C+5G,\xrightarrow{50 percent}6B+F $
Options:
A) 2.4
B) 30
C) 4.8
D) 1
Show Answer
Answer:
Correct Answer: A
Solution:
[a] $ 3D+4E\xrightarrow{80,percent}5C+A $ 9 mole 14 mole $ \frac{5}{3}\times 9\times 0.8=12 $ mole $ \underset{12,mole}{\mathop{3C}},~+\underset{4mole}{\mathop{5G}},\xrightarrow{50,percent}6B+F $ Limiting Reagent is G
$ \therefore $ Moles of B formed $ =\frac{6}{5}\times 4\times 0.5=2.4 $
