| List-$I$ (ऑक्साइड) | List-$II$ (प्रकृति) |
| $A. Cl_2O_7$ | $I. \text{उभयधर्मी}$ |
| $B. Na_2O$ | $II. \text{क्षारीय}$ |
| $C. Al_2O_3$ | $III. \text{उदासीन}$ |
| $D. N_2O$ | $IV. \text{अम्लीय}$ |
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| तत्व | $ \Delta_i H_1 $ $( kJ \ mol^{-1} )$ | $ \Delta_i H_2 $ $( kJ \ mol^{-1} )$ | $ \Delta_{eg} H $ $( kJ \ mol^{-1} )$ |
|---|---|---|---|
| $ I $ | $ 520 $ | $ 7300 $ | $ -60 $ |
| $ II $ | $ 490 $ | $ 3051 $ | $ -48 $ |
| $ III $ | $ 1681 $ | $ 3374 $ | $ -328 $ |
| $ IV $ | $ 2372 $ | $ 5251 $ | $ +48 $ |
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