Consider the following statements:
(A) molecule has a trigonal planar structure.
(B) Bond length of is shorter than .
(C) Isoelectronic molecules or ions have identical bond order.
(D) Dipole moment of is higher than that of water molecule.
Choose the correct answer from the option below:
(A) molecule has a trigonal planar structure.
(B) Bond length of is shorter than .
(C) Isoelectronic molecules or ions have identical bond order.
(D) Dipole moment of is higher than that of water molecule.
Choose the correct answer from the option below:
- (A)(A) and (D) are correct
- (B)(C) and (D) are correct
- (C)(A) and (B) are correct
- (D)(B) and (C) are correct✓ Correct
Answer: (D)
Solution
Statement (A) is incorrect: NF₃ has a trigonal pyramidal shape (not planar) due to the lone pair on nitrogen.
Statement (B) is correct: N₂ has a bond order of 3 (triple bond) while O₂ has a bond order of 2 (double bond). Higher bond order means shorter bond length, so N₂ has a shorter bond length than O₂.
Statement (C) is correct: Isoelectronic species have the same number of electrons and similar electronic configurations, resulting in identical bond orders.
Statement (D) is incorrect: Water (H₂O) has a higher dipole moment than H₂S due to the greater electronegativity difference between O and H compared to S and H.
Therefore, statements (B) and (C) are correct.
Statement (B) is correct: N₂ has a bond order of 3 (triple bond) while O₂ has a bond order of 2 (double bond). Higher bond order means shorter bond length, so N₂ has a shorter bond length than O₂.
Statement (C) is correct: Isoelectronic species have the same number of electrons and similar electronic configurations, resulting in identical bond orders.
Statement (D) is incorrect: Water (H₂O) has a higher dipole moment than H₂S due to the greater electronegativity difference between O and H compared to S and H.
Therefore, statements (B) and (C) are correct.
JEE Main · 2023 · 15 Apr 2023 · Shift 1 · Single correct option