Which of the following is NOT correctly matched?
A. Element of 1st transition series with highest 2nd ionisation enthalpy: Cu
B. Element of 1st transition series with lowest atomisation: Zn
C. Last element of 2nd transition series : Hg
D. Element of 1st transition series with highest 3rd ionisation enthalpy : Zn
Choose the correct answer from the options given below:
This question was previously asked in
Shift 27/05/2023 3:30 PM - 6:30 PM
Correct Answer
Detailed Explanation
Let's evaluate each option:
A. Element of 1st transition series with the highest 2nd ionization enthalpy: Cu - This statement is correct, as copper has a high second ionization enthalpy due to the stability of the fully-filled d orbital.
B. Element of 1st transition series with the lowest atomization: Zn - This statement is incorrect. Zn (zinc) does not have the lowest atomization energy among the elements of the first transition series.
C. Last element of 2nd transition series: Hg - This statement is correct. Mercury (Hg) is the last element of the second transition series.
D. Element of 1st transition series with the highest 3rd ionization enthalpy: Zn - This statement is incorrect. Zn (zinc) does not have the highest third ionization enthalpy among the elements of the first transition series.
Based on the analysis, the option that is NOT correctly matched is:
- B only.
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