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Question

The gaseous hydrocarbon Acetylene, C2H2 used in welder's torches, releases 1300 KJ, when 1 mole of C2H2 undergoes combustion, then which of the following is not true?

A
Combustion of Acetylene is an exothermic reaction
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B
The balanced chemical reaction of combustion of Acetylene is: C2H2+5O22CO2+H2O
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C
2 moles of water produced when 2 moles of Acetylene reacts
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D
44 g of CO2 produced, when 13 g of Acetylene reacts
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Solution

The correct option is D The balanced chemical reaction of combustion of Acetylene is: C2H2+5O22CO2+H2O
Option B is not true as the balanced equation is:-
C2H2+52O2 2CO2+H2O (balanced)

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