Consider the following five groups (According to modern periodic table) of elements with their incre — Chemical Bonding Chemistry Question
Question
Consider the following five groups (According to modern periodic table) of elements with their increasing order of atomic numbers : Group 1 -> A, B, C, D, E ; Group 2 -> F, G, H, I, J ; Group 13 -> K, L, M, N, O ; Group 15 -> P, Q, R, S, T ; Group 17 -> U, V, W, X, Y. If first and last element of each group belongs to 2nd and 6th period respectively and Z represents to carbonate ion (CO3^2-) then consider the following orders: (i) O^+ > H^2+ ; Polarising power (ii) T^3+ > S^3+ > R^3+ ; Stability of cation (iii) U^-(aq) > V^-(aq) > W^-(aq) > X^-(aq) ; Size (iv) JV2 < IV2 < GV2 < LV3 ; Covalent character (v) GZ > IZ > JZ ; Thermal stability (vi) AV > BV > CV > DV > EV ; Thermal stability (vii) C3P > B3P > A3P ; Lattice energy (viii) KU3 < KV3 < KW3 < KX3 ; Melting point. Then calculate value of \
💡 Solution & Explanation
Step 1: Determine the geometry of water (H2O). It is sp3 hybridized with two bonding pairs and two lone pairs, resulting in a bent shape. Step 2: Because of its asymmetrical bent geometry, the individual polar O-H bond dipoles do not cancel each other out, which gives the molecule a net non-zero dipole moment (mu > 0). Step 3: Therefore, the statement that the molecule has mu = 0 is incorrect, which corresponds to option (a).