If butane on combustion gives carbon monoxide, find the number of $O_{2}$ molecules required.

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5.5

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4.5

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Solution

The correct option is C 4.5
Balanced reaction:

$C_{4} H_{10} + \frac{9}{2} O_{2} \to 4 C O (g) + 5 H_{2} O (l)$

Therefore number of $O_{2}$ molecules required for complete combustion of butane is $\frac{9}{2} = 4.5 m o l$

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Similar questions

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Q. In the reaction;

C O + \frac{1}{2} O_{2} \to C O_{2}; N_{2} + O_{2} \to 2 N O

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Question 6
Incomplete combustion of fuel such as petrol and diesel gives
(a) Nitrogen oxide
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(c) Carbon monoxide
(d) Carbon dioxide

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If butane on combustion gives carbon monoxide, find the number of O2 molecules required.

The correct option is C 4.5Balanced reaction:C4H10+92O2→4CO(g)+5H2O(l)Therefore number of O2 molecules required for complete combustion of butane is 92=4.5 mol

If butane on combustion gives carbon monoxide, find the number of $O_{2}$ molecules required.

The correct option is C 4.5
Balanced reaction:

$C_{4} H_{10} + \frac{9}{2} O_{2} \to 4 C O (g) + 5 H_{2} O (l)$

Therefore number of $O_{2}$ molecules required for complete combustion of butane is $\frac{9}{2} = 4.5 m o l$