NEET2023ChemistryClassification of Elements and Periodicity in PropertiesActual
Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) : Ionisation enthalpy increases along each series of the transition elements from left to right. However, small variations occur. Reason (R) : There is corresponding increase in nuclear charge which accompanies the filling of electrons in the inner dorbitals. In the light of the above statements, c
Options
- ABoth ( A ) and ( R ) are correct and ( R ) is the correct explanation of ( A )
- BBoth ( A ) and ( R ) are correct but ( R ) is not the correct explanation of ( A )
- C( A ) is correct but (R) is not correct
- D(A) is not correct but (R) is correct
Correct answer
A. Both ( A ) and ( R ) are correct and ( R ) is the correct explanation of ( A )
Step-by-step solution
- Due to an increase in nuclear charge which accompanies the filling of the inner d orbitals, there is an increase in ionisation enthalpy along each series of the transition elements, from left to right. However, many small variations occur.