Tiêu đề Chemial Bonding - 2.pdf ✅

1 JEE ADVANCED 2024 Chemial Bonding 1. Select the correct statement for the sulphuric acid. (I) It has high boiling point and viscosity. (II) There are two types of bond lengths in its bivalent anion. (III) p-d bonding between sulphur and oxygen is observed. (IV) Sulphur has the same hybridisation that is of boron in diborane. (1) II and III only (2) II, III and IV only (3) I, III and IV only (4) III and IV only 2. How many of the following has hydrogen bonding (a) NH3 (b) CH4 (c) H2O (d) HI (e) HF (f) HCOOH (g) B(OH)3 (h) CH3COOH (i) HCO3 – ion 3. Which compounds are lewis acids ? (1) BCl3 (2) H2S (3) H2O (4) NH3 4. Which of the following statements is correct regarding phosphoric acid ? (1) p–d back bonding exist between O and P. (2) The anion is resonance stablized. (3) It is a dibasic acid. (4) Inter molecular H bonding between molecules make it a syrupy (viscous) liquid. 5. Specify the coordination geometry around and hybridisation of N and B atoms in a 1 : 1 complex of BCl3 & NH3. (1) N : tetrahedral sp3 , B : tetrahedral sp3 (2) N : pyramidal sp3 , B : pyarmidal sp3 (3) N : pyramidal sp3 , B : planar sp2 (4) N : pyramidal sp3 , B : tetrahedral sp3 6. The number of water molecule (s) directly bonded to the metal centre in CuSO4. 5H2O is 7. Find out the number of species having bond order equal to 1 : (a) H2 (b) H2 + (c) He2 (d) Li2 (e) Be2 (f) B2 8. How many of the following are gerade molecular orbitals? (i) 2s (ii) 2pz (iii) 2py (iv) 2px 9. Which of the following compound have largest O–O bond length. (1) O2 (2) O2[BF4] (3) KO2 (4) 2 O2 + 10. During the formation of a molecular orbital from atomic orbitals of the same atom, probability of electron density is : (1) none zero in the nodal plane (2) maximum in the nodal plane (3) zero in the nodal plane (4) zero on the surface of the lobe DPP - 2