Some Basic Concepts Of Chemistry Question 255

Question: If isobutane and n-butane are present in a gas, then how much oxygen should be required for complete combustion of 5 kg of this gas

Options:

A) 17.9 kg

B) 9 kg

C) 27 kg

D) 1.8 kg

Show Answer

Answer:

Correct Answer: A

Solution:

Isobutane and n-butane $ [ C _4H _{10} ] $ have same molecular formula; $ C _4H _{10}+\frac{13}{2}O _2\to 4CO _2+5H _2O $

For 58gm of $ C _4H _{10} $ 208 gm $ O _2 $ is required then for 5 kg of $ C _4H _{10} $ $ O _2=\frac{5\times 208}{58}=17.9,kg $



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