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(C) Beryllium $(Be)$ and Aluminum $(Al)$ exhibit a diagonal relationship due to similar charge-to-size ratios. $1$. Both $Be_2C$ and $Al_4C_3$ produce

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$Be(OH)_2$ is basic like $Al(OH)_3$

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(C) Beryllium $(Be)$ and Aluminum $(Al)$ exhibit a diagonal relationship due to similar charge-to-size ratios. $1$. Both $Be_2C$ and $Al_4C_3$ produce methane $(CH_4)$ upon hydrolysis. $2$. Both metals become passive towards concentrated $HNO_3$ due to the formation of an inert oxide layer. $3$. Both $Be(OH)_2$ and $Al(OH)_3$ are amphoteric in nature,not basic. Therefore,the statement that $Be(OH)_2$ is basic like $Al(OH)_3$ is incorrect. $4$. Both form complex anions: $Be$ forms beryllates $([Be(OH)_4]^{2-})$ and $Al$ forms aluminates $([Al(OH)_4]^-)$.

Beryllium shows a diagonal relationship with aluminum. Which of the following similarities is incorrect?

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