"The first ionization energy of carbon atom is greater than that of boron atom, whereas the reverse is true for the second ionization energy" if true enter 1 else 0
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Solution

The correct option is A 1
From left to right in the periodic table, the ionization energy increases; therefore, the first ionization energy of carbon atom is greater than that of boron.
The second ionization energy of boron is greater than that of carbon because after losing one electron, boron acquires a stable electronic configuration.
$B (z = 5) : I s^{2} 2 s^{2} 2 p^{1}$
$B^{+} : I s^{2} 2 s^{2}$

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