Match the entries of Column I with appropriate entries of Column II and chose the correct option out of the four options (a), (b), (c ) and (d) given at the end of each question.{:("Column I","Column II"),("(A) Isoelectronic series","(p) " A^(+)+" energy" to A^(++)+e^(-)),("(B) Half - filled","(q) Ar, "K^(+)","Ca^(2+)),("(C ) Second ionization enthalpy","(r ) Cerium"),("(D) Lanthanoid","(s) Nitrogen"):}

Match the entries of Column I with appropriate entries of Column II an

1.	Match the entries of Column I with appropriate entries of Column II and chose the correct option out of the four options (a), (b), (c ) and (d) given at the end of each question.{:("Column I","Column II"),("(A) Isoelectronic series","(p) " A^(+)+" energy" to A^(++)+e^(-)),("(B) Half - filled","(q) Ar, "K^(+)","Ca^(2+)),("(C ) Second ionization enthalpy","(r ) Cerium"),("(D) Lanthanoid","(s) Nitrogen"):}
Answer» A-r, B-s, C-p, D-q A-s, B-p, C-r, D-q A-q, B-s, C-p, D-r A-s, B-r, C-q, D-p Answer :C