JIPMER 2010

Exam: JIPMER
Year: 2010
Subject: Chemistry
Chapter: Classification of Elements and Periodicity in Properties

JIPMER 2010 · Chemistry · Classification of Elements and Periodicity in Properties

Which of the following relation is correct ?

Options

A $\mathrm{I}^{\text{st }}$ IE of C $>$ \mathrm{I} $^{\text{st }}$ IE of B
B $\mathrm{I}^{\text{st }}$ IE of $\mathrm{C} <$ \mathrm{I} $^{\text{st }}$ IE of B
C $\mathrm{II}^{\text{nd }}$ $\mathrm{IE}$ $of$ $\mathrm{C}$ \gt $\mathrm{II}^{$ $\text{nd }$ $}$ $\mathrm{IE}$ $of B$
DBoth (b) and (c)

Correct answer

A. $\mathrm{I}^{\text{st }}$ IE of C $>$ \mathrm{I} $^{\text{st }}$ IE of B

Step-by-step solution

The minimum amount of energy required to remove the most loosely bound electron from an isolated gaseous atom so as to convert it into a gaseous cation, is called its ionisation energy. Because the size of

C

is smaller than that of the

B

due to effective nuclear charge, hence

\mathrm{I}^{\text{st }} \mathrm{IE} of

\mathrm{C}

>

\mathrm{I}^{\text{st }

}

IE of B

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