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(C) The acidic strength of oxides generally increases from left to right across a period and decreases from top to bottom down a group. Comparing the

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(C) The acidic strength of oxides generally increases from left to right across a period and decreases from top to bottom down a group. Comparing the oxides: $1$. Across a period (left to right): $SiO_2 $2$. Down a group: Acidic strength decreases. Looking at the cycle: - $CO_2 \rightarrow N_2O_5$: Increase (Left to right) - $N_2O_5 \rightarrow P_4O_{10}$: Decrease (Top to bottom) - $P_4O_{10} \rightarrow SiO_2$: Decrease (Right to left) - $SiO_2 \rightarrow CO_2$: Increase (Bottom to top) This matches the diagram in option $C$.

Which of the following diagrams correctly represents the trend in the acidic strength of the given oxides?

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