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Which of the following contains three pairs of electrons in the valence shell?
- a)Carbocations
- b)Carbanions
- c)Free radicals
- d)None
Correct answer is option 'A'. Can you explain this answer?
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Which of the following contains three pairs of electrons in the valenc...
Explanation:
- Carbocations: A carbocation is a species in which a carbon atom has only six electrons in its outermost valence shell. It has a positive charge and is an electron-deficient species. Therefore, it contains only two electrons in its valence shell, not three pairs of electrons. Hence, option 'A' is not correct.
- Carbanions: A carbanion is a species in which a carbon atom has eight electrons in its outermost valence shell. It has a negative charge and is an electron-rich species. Therefore, it contains four pairs of electrons in its valence shell, not three pairs of electrons. Hence, option 'B' is not correct.
- Free radicals: A free radical is a species in which a molecule or atom has an unpaired electron in its outermost valence shell. It is an electron-deficient species. Therefore, it contains only one electron in its valence shell, not three pairs of electrons. Hence, option 'C' is not correct.
- None: The correct option contains three pairs of electrons in its valence shell. As none of the given options satisfy this condition, option 'D' is not correct.
- Carbocations: A carbocation is a species in which a carbon atom has only six electrons in its outermost valence shell. It has a positive charge and is an electron-deficient species. Therefore, it contains only two electrons in its valence shell. However, it can form three coordinate covalent bonds with three other atoms or molecules, each of which provides a pair of electrons. Therefore, the total number of electrons in its valence shell becomes six, i.e., three pairs of electrons. Hence, option 'A' is correct.
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Community Answer
Which of the following contains three pairs of electrons in the valenc...
Carbocation has 6 electrons in its valence shell..
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Which of the following contains three pairs of electrons in the valence shell?a)Carbocationsb)Carbanionsc)Free radicalsd)NoneCorrect answer is option 'A'. Can you explain this answer?
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