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| सूची-$I$ | सूची-$II$ |
| $(1)$ ${H_3O^+}$ | $(A)$ रेखीय |
| $(2)$ ${HC \equiv CH}$ | $(B)$ कोणीय |
| $(3)$ ${ClO_2^-}$ | $(C)$ चतुष्फलकीय |
| $(4)$ ${NH_4^+}$ | $(D)$ त्रिकोणीय द्विपिरामिडी |
| $(E)$ पिरामिडी |
| List-$I$ (प्रजाति) | List-$II$ ($O-N-O$ कोण) |
| $A$. $NO_2^+$ | $1$. $180^{\circ}$ |
| $B$. $NO_2$ | $2$. $132^{\circ}$ |
| $C$. $NO_2^-$ | $3$. $115^{\circ}$ |
| $D$. $NO_3^-$ | $4$. $120^{\circ}$ |
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