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JIPMER2010ChemistryClassification of Elements and Periodicity in Properties

Which of the following relation is correct ?

Options

  1. AI ^ st IE of C I ^ st IE of B
  2. BI ^ st IE of C I ^ st IE of B
  3. CII ^ nd IE of C II ^ nd IE of B
  4. DBoth (b) and (c)

Correct answer

A. I ^ st IE of C I ^ 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 I ^ st IE of C I ^ st IE of B

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