4- 1 - en Which of the following is the effective nuclear charge the 4d electron of the Sn atom. What is the stability order and bond order between Nz, O2, NO A) S.O.=> N2> NO>02 B) S.O.=> N2 >O2>NO C) S.O.=>O2> N2> NO B.O=> N2> NO>O2 B.O.=> N2> NO>O2 B.O.=> O2>NO>N2 a) E) S.O.=> Z* - 5.65 Z* - 10.85 D) S.O.=>NO>O2 >N2 O2>N2>NO 2) -) B.O.=> Z* - 9.65 B.O.=>O2>NO>N2 02>N2>NO z - 10.65 5 - Which of the following molecule and point group is correct? A) cis-C2H2Cl2 = Can n 7- Which of the following is the correct set of quantum numbers for the last electron added to complete the electron configuration for zinc atom? ml ms A) 4 1 -1 -1/2 B) 4 3 +1/2 C) 3 2 +2 -1/2 D) 3 1 0 +1/2 E) 4 2 -2 +1/2 B) trans- C2H2Cl2 = C2v C) C2S = C2v D) BCI3 = C3v E) CH.Cl, = T. 9- i. Soft and malleable metals usually have cubic close packing structure. 8 - Which one is the paramagnetic ? A) N2 diamagnetic ii. Most metals can be bent due to non- directional bonding. B) O2* diamagnetic iii. Harder and more brittle metals usually have hexagonal close packing structure. C) CN diamagnetic D) OF+ paramagnetic iv. Metallic crystals consist of positive and negative ions E) NaCl diamagnetic Which statements about metallic crystals are correct