Q. No.In , formal charge on every oxygen atom and P-O bond order respectively are:
1. –0.75 and 1.25
2. –0.5 and 2
3. 1 and 1.5
4. –0.75 and 2
1. –0.75 and 1.25
2. –0.5 and 2
3. 1 and 1.5
4. –0.75 and 2
Identify the correct increasing order of bond length among the following species:
1. NO⁻ < NO < NO⁺ < O₂⁻2. O₂⁻ < NO < NO⁻ < NO⁺
3. O₂⁻ < NO⁻ < NO < NO⁺
4. NO⁺ < NO < NO⁻ < O₂⁻
Find the correct reason for H₂O being polar while BeF₂ is non-polar.
| 1. | H₂O shows hydrogen bonding, whereas BeF₂ exists as a discrete molecule. |
| 2. | H₂O is linear, whereas BeF₂ is angular. |
| 3. | H₂O is angular, whereas BeF₂ is linear. |
| 4. | The electronegativity of F is greater than that of O |
In a regular octahedral molecule, MX6, the number of X–M–X bonds at 180º is:
| 1. | 3 | 2. | 2 |
| 3. | 6 | 4. | 4 |
The lone pairs in the BrF3 molecule, occupy equatorial positions to minimize:
| 1. | Bond pair – bond pair repulsion only |
| 2. | Lone pair – lone pair repulsion and lone pair–bond pair repulsion |
| 3. | Lone pair – lone pair repulsion only |
| 4. | Lone pair – bond pair repulsion only |
The dipole moment of compound AB is 10.92 D and that of compound CD is 12.45 D. If the bond length of AB is 2.72 A° and that of CD is 2.56 A°, then for these compounds the correct statement is:
| 1. | More ionic nature in AB | 2. | More ionic nature in CD |
| 3. | Equal in both | 4. | Cannot be predicted |
Identify the isoelectronic pair among the following:
1. CO₂ and NO₂2. NO₂⁻ and CO₂
3. CN⁻ and CO
4. SO₂ and CO₂
\(P_\pi - d_\pi\) bonding is present in:
| 1. | \(NO_{3}^{-}\) | 2. | \(SO_{3}^{- 2}\) |
| 3. | \(BO^{-3}_3\) | 4. | \(CO^{-2}_3\) |
In NO3– ion, the number of bond pair and lone pair of electrons on nitrogen atom are respectively:
| 1. | 2 and 2 | 2. | 3 and 1 |
| 3. | 1 and 3 | 4. | 4 and 0 |
© 2026 GoodEd Technologies Pvt. Ltd.