JEE Mains · Chemistry · STD 11 - 4. Chemical bonding and molecular structure
Given below are statements about some molecules/ions.
Identify the CORRECT statements.
A. The dipole moment value of \( NF_{3} \) is higher than that of \( NH_{3} \)
B. The dipole moment value of \( BeH_{2} \) is zero.
C. The bond order of \( O_{2}^{2-} \) and \( F_{2} \) is same.
D. The formal charge on the central oxygen atom of ozone is -1.
E. In \( NO_{2}, \) all the three atoms satisfy the octet rule, hence it is very stable.
Choose the correct answer from the options given below :
- A A, B, C, D & E
- B B & C only
- C B, C & D only
- D A, C & D only
Answer & Solution
Correct Answer
(B) B & C only
Step-by-step Solution
Detailed explanation
(A) Dipole moment: \( NF_{3} < NH_{3} \) (B) \( BeH_{2} \) is '\( sp \)' hybridized, linear molecule with zero dipole moment. (C) \( O_{2}^{-2} \Rightarrow \) bond order = 1; \( F_{2} \Rightarrow \) bond order = 1 (D) Formal charge on central oxygen atom in \( O_{3} \) is +1.…
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