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Question

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

(a) prefers the +2 oxidation state.
(b) forms the strongest π 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
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B
(a)Pb; (b)C; (c)Pb; (d)C
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C
(a)Pb; (b)C; (c)Si; (d)Si
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D
(a)Sn; (b)C; (c)Si; (d)C
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Solution

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 π bonds due to catention property.
Si is the second most abundant element in the earth's crust.
C
forms the most acidic oxide CO2.

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