RE-NEET Chemistry Classification of Elements & Periodicity in Properties Class 11 Questions

Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R. Assertion A: The first ionization enthalpy of O is lower than that of N and F. Reason R: The loss of an electron from O leads to stable half-filled p orbital. In light of the above statements, choose the most appropriate answer from the options given below:

The correct statement is

Among the following options, the correct trend in the electron gain enthalpy is

The correct decreasing order of atomic radii (pm) of Li, Be, B and C is

Match List-I with List-II:

Match List-I with List-II: