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Q.

Consider the equation,

C(graphite)+O2(g)→CO2(g)+394kJ/mole

Incorrect statement about the reaction is 

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a

It is an endothermic reaction

b

Δf0H of carbondioxide is -394 kJ/mole

c

All the reactants and products are in their standard state

d

Enthalpy of combustion of graphite is  – 394 KJ/mole

answer is A.

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Detailed Solution

C(graphite)+O2(g)→CO2(g),ΔH=−394kJ/mole

 ΔH of the reaction is negative, it is a  combustion reaction; It is an exothermic reaction.

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