For which of the following reactions is the $\Delta H^o$ value equal to the first ionization energy of $Ca$?
- A$Ca^{+}_{(g)} \to Ca^{2+}_{(g)} + e^-$
- B$Ca_{(g)} \to Ca^{+}_{(g)} + e^-$
- C$Ca_{(s)} \to Ca^{+}_{(g)} + e^-$
- D$Ca_{(g)} \to Ca^{2+}_{(g)} + 2e^-$
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Similar Questions
Identify the incorrect match regarding Ionization Potential $(I.P.)$ trends:
$I.P.$ \text{ Trend} Reason $A$. $N > O$ Half-filled configuration $B$. $Zr < Hf$ Lanthanide contraction $C$. $Na > K$ $Z_{eff}$ $D$. $Al < Ga$ Transition contraction
| $I.P.$ \text{ Trend} | Reason |
| $A$. $N > O$ | Half-filled configuration |
| $B$. $Zr < Hf$ | Lanthanide contraction |
| $C$. $Na > K$ | $Z_{eff}$ |
| $D$. $Al < Ga$ | Transition contraction |
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View SolutionWhich of the following statements is incorrect?
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View SolutionThe correct decreasing order of the first ionisation enthalpies of the five elements $Be, B, C, N, F$ is:
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View SolutionWhich of the following statements is incorrect?
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