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A reaction takes place in a several sequential steps A, B, C and D. The value of enthalpy change for sequential steps are p, q, r and s respectively if A and C have equal values of enthalpy change with total enthalpy change is t, then choose the incorrect statement among the following

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2p = p + r

q + r = t – (s + p)

2p = t −(q + s)

q + r = p + s

answer is D.

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Detailed Solution

according to Hess law

t = p + q + r + s

q + r $\neq$ p + s exact amount of enthalpy change is not known

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