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Question

# Among the following for which reaction heat of reaction represents bond energy of HCl

- HCl(g)→H+(g)+Cl–(g)
- HCl(g)→1/2H2(g)+1/2Cl2(g)
- 2HCl(g)→H2(g)+Cl2(g)
- HCl(g)→H(g)+Cl(g)

## The correct answer is: HCl(g)→H(g)+Cl(g)

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