99 Percentile Qs Bank for JEE MainChemistryd and f Block Elements
Assertion (A) : Transition elements have higher enthalpies of atomization. Reason (R) : Large number of unpaired electrons present in transition elements facilitate strong interatomic interaction and strong bonding between atoms.
Options
- ABoth (A) and (R) are correct and (R) is the correct explanation of (A)
- BBoth (A) and (R) are correct and (R) is not the correct explanation of (A).
- C(A) Is correct and (R) is incorrect.
- D(A) Is incorrect and (R) is correct.
Correct answer
A. Both (A) and (R) are correct and (R) is the correct explanation of (A)
Step-by-step solution
More the no. of valence electrons more is the overlapping. This phenomenon also leads to the high melting and boiling point.