Question

Identify the group $14A$ element that best fits each of the following descriptions:

(a) prefers the $+2$ oxidation state.

(b) forms the strongest $\pi$ bonds.

(c)is the second most abundant element in the earth's crust.

(d)forms the most acidic oxide.

• A. (a)$Pb$; (b)$C$; (c)$Si$; (d)$C$
• B. (a)$Pb$; (b)$C$; (c)$Pb$; (d)$C$
• C. (a)$Pb$; (b)$C$; (c)$Si$; (d)$Si$
• D. (a)$Sn$; (b)$C$; (c)$Si$; (d)$C$

Answer 1

The correct option is A (a)$Pb$; (b)$C$; (c)$Si$; (d)$C$

$Pb$ prefers the $+2$ oxidation state due to inert pair effect.
$C$ forms the strongest $\pi$ bonds due to catention property.
$Si$ is the second most abundant element in the earth's crust.
$C$ forms the most acidic oxide $C{O}_2$.