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Q.

Which of the following substances will nave non-zero standard enthalpy of formation?
${ΔH}_{f}^{\circ} \neq 0$

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a

$H^{+} (aq)$

b

$C_{(graphite)}$

c

${Rn}_{(gas)}$

d

${Sn}_{(grey)}$

answer is D.

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Detailed Solution

${Sn}_{(grey)}$ has the non-zero standard enthalpy of formation.

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