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For question numbers 1 and 2, two statements are given - one labelled
Answer to these questions from the codes (i), (ii), (ub and (iv) as given
Both (A) and (R) are true and (R) is correct explanation of the
assertion (A).
(ii)
Both (A) and (R) are true, but (R) is not the correct explanation of
the assertion (A).
(iii)
(A) is true, but (R) is false.
(iv) (A) is false, but (R) is true.
Assertion (A) : Carbon has a strong tendency to either lose or gain
electrons to attain noble gas configuration.
Reason (R):
Carbon has four electrons in its outermost shell and has
the tendency to share electrons with carbon or other
elements.
Assertion (A) and the other labelled Reason (R). Select the correct​

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Answer:

(iv) (A) is false, but (R) is true.

Explanation:

It is not true that carbon has a strong tendency to either lose or gain electrons to attain noble gas configuration. Carbon is a member of group 14, it is the first member of the group and carbon is purely a non metal. Only metals metals can loose electrons to attain the noble gas configuration. Moreover, carbon does not participate in ionic bonding so it does not gain electrons to attain the noble gas configuration.

However, carbon participates in covalent bonding where it is covalently bonded to four other chemical species using its four outermost electrons. Carbon forms covalent bonds in which four electrons are shared with other chemical species.

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