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The gaseous hydrocarbon Acetylene, $C_{2} H_{2}$ used in welder's torches, releases 1300KJ, when 1 mole of $C_{2} H_{2}$ undergoes combustion, then which of the following is not true?

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Combustion of Acetylene is an exothermic reaction

The balanced chemical reaction of combustion of Acetylene is:

C_{2} H_{2} + \frac{5}{2} O_{2} \to 2 C O_{2} + H_{2} O

2 moles of water are produced when 2 moles of acetylene reacts

44 g of

C O_{2}

produced, when 13 g of acetylene reacts

answer is B.

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Detailed Solution

The balanced chemical reaction of combustion of Acetylene is:

$2 C_{2} H_{2} + 5 O_{2} \to 4 C O_{2} + 2 H_{2} O$

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