OnlineCBT
Chemistry · CHEMICAL BONDING AND MOLECULAR STRUCTURE
हिन्दीConsider the following statements regarding the VSEPR theory and polarity of molecules: (A) Lone pair-lone pair repulsion is stronger than lone pair-bond pair repulsion, which in turn is stronger than bond pair-bond pair repulsion. (B) A multiple bond is treated as a single super pair in VSEPR theory. (C) \( \text{BF}_3 \) has zero dipole moment because the vector sum of any two \( \text{B}-\text{F} \) bond moments is equal and opposite to the third. (D) The net dipole moment of \( \text{H}_2\text{S} \) is greater than that of \( \text{H}_2\text{O} \). How many of the above statements are correct?
Correct answer · Option 3
Only three
Explanation
Statements (A), (B), and (C) are strictly correct. (D) is incorrect because H2O has \( \mu = 1.85\text{ D} \) while H2S has \( \mu = 0.95\text{ D} \).
