The number of molecules/ions that show linear geometry among the following is _____. SO₂, BeCl₂, CO₂, N₃⁻, NO₂, F₂O, XeF₂, NO₂⁺, I₃⁻, O₃
To determine the geometry of each molecule/ion, we need to consider the Lewis structure, the number of electron domains (bonding pairs and lone pairs) around the central atom, and the VSEPR theory.
1. SO₂: The central sulfur atom has one lone pair and two bonding pairs, leading to a bent or V-shaped geometry.
2. BeCl₂: The central beryllium atom has two bonding pairs and no lone pairs, resulting in a linear geometry.
3. CO₂: The central carbon atom has two double bonds and no lone pairs, resulting in a linear geometry.
4. N₃⁻: The central nitrogen atom has two double bonds and no lone pairs, resulting in a linear geometry.
5. NO₂: The central nitrogen atom has one lone pair and two bonding pairs, leading to a bent geometry.
6. F₂O: The central oxygen atom has two lone pairs and two bonding pairs, resulting in a bent geometry.
7. XeF₂: The central xenon atom has two bonding pairs and three lone pairs, resulting in a linear geometry.
8. NO₂⁺: The central nitrogen atom has two double bonds and no lone pairs, resulting in a linear geometry.
9. I₃⁻: The central iodine atom has two bonding pairs and three lone pairs, resulting in a linear geometry.
10. O₃: The central oxygen atom has one lone pair and two bonding pairs, leading to a bent geometry.
The molecules/ions with linear geometry are:
\(BeCl_2\)
\(CO_2\)
\(N_3\)⁻
\(XeF_2\)
\(NO_2\)^+⁺
\(I_3\)^-⁻
Thus, there are 6 molecules/ions with linear geometry.
Match the LIST-I with LIST-II:
Choose the correct answer from the options given below :
\([A]\) (mol/L) | \(t_{1/2}\) (min) |
---|---|
0.100 | 200 |
0.025 | 100 |