Identify the correct statement(s) from the fo | vedclass

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(B) $(I)$ The catenation property of group $14$ elements decreases from carbon to tin. Carbon has a small atomic size,resulting in strong $C-C$ bonds,

Vedclass · Accepted Answer

$I, III$

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(B) $(I)$ The catenation property of group $14$ elements decreases from carbon to tin. Carbon has a small atomic size,resulting in strong $C-C$ bonds,which leads to maximum catenation. As we move down the group,atomic size increases,bond strength decreases,and the tendency for catenation decreases.$(II)$ Fullerene $(C_{60})$ consists of $20$ six-membered rings and $12$ five-membered rings. The statement in the question incorrectly swaps these values.$(III)$ $SiO_2$ is an acidic oxide and is soluble in strong alkaline solutions like $NaOH$ to form sodium silicate: $2NaOH + SiO_2 \longrightarrow Na_2SiO_3 + H_2O$.Therefore,statements $I$ and $III$ are correct.

Identify the correct statement$(s)$ from the following: $I$. The catenation property of group $14$ elements decreases from carbon to tin. $II$. Fullerene $(C_{60})$ has $20$ five-membered carbon rings and $12$ six-membered carbon rings. $III$. $SiO_2$ is soluble in conc. $NaOH$.

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