s and s Overlap

Q. Which one of the following correctly represents the order of stability of oxides, $X_{2}O;(X=\text{halogen})$?

1. $I>Cl>Br$
2. $Br>I>Cl$
3. $Cl>I>Br$
4. $Br>Cl>I$

Q. Consider the following ions:
$S_2{O}_2^{2-},S_2{O}_3^{2-},S_2{O}_4^{2-},S_2{O}_5^{2-},S_2{O}_6^{2-},S_2{O}_7^{2-},S_2{O}_8^{2-}$

If the number of ions having $S–S$ or $S=S$ linkage be $‘x^{\prime }$ and the number of ions having $S–O–S$ linkage be $‘y^{\prime }$, the number of ions having peroxy-linkage be $‘z^{\prime }$.
Find the value of $\left(\frac{x}{y+z}\right)$.

Q. What is hybridization?

Q. Hybridisation involves the mixing of orbitals having comparable energies of same atom. Hybridised orbitals perform efficient overlapping than overlapping by pure $s,p$ or $d$ orbitals.
Which of the following is not correctly match between given species and type of overlapping?

1. $Xe{O}_3:\text{Three}d\pi -p\pi \text{bonds}$
2. $H_{2}S{O}_4:\text{Two}d\pi -p\pi \text{bonds}$
3. $S{O}_3:\text{Three}d\pi -p\pi \text{bonds}$
4. $HCl{O}_4:\text{Three}d\pi -p\pi \text{bonds}$

Q. What is localisation

Q. The vanderwaals radii of O, N, cl, F and Ne increases in the order ?

Q. How to find the hybridizationof[Ni(CN)4]2- n ntand the d orbital used in it. What is the hybridization of NO2?

Q. Which of the following ions does not have S-S linkage?

1. $S_2{O}_8^{2-}$
2. $S_2{O}_3^{2-}$
3. $S_2{O}_6^{2-}$
4. $S_2{O}_5^{2-}$

Q.

Q. If two different non-axial d-orbitals having $XZ$ nodal plane form $\pi$ bond by overlapping each other, then internuclear axis will be:

1. $X$
2. $Y$
3. $Z$
4. No $\pi$-bond will form

Q. What is hybridisation

Q. When $2s-2s,2p-2p$ and $2p-2s$ orbitals overlap, the bond strength decreases in the order:

1. $p-p>p-s>s-s$
2. $p-p>s-s>p-s$
3. $s-s>p-p>p-s$
4. $s-s>p-s>p-p$

Q. Why a hybrid orbital taking part in the bond formation must contain only one electron in it?

Q. Strongest bond is formed, when atomic orbitals undergo:

1. maximum overlapping
2. minimum overlapping
3. none of these
4. no overlapping

Q. Which type of overlapping is shown by $(p_x,p_y$ and $p_z)$-orbitals ?

1. Three sidewise overlaps
2. Two end to end and one sidewise overlap
3. Three end to end overlaps
4. Two sidewise and one end to end overlap

Q. The bond in the formation of fluorine molecule will be:

1. due to $s-s$ overlapping
2. due to $s-p$ overlapping
3. due to $d-d$ hybridization
4. due to $p-p$ overlapping

Q. Hybridization is due to the overlapping of:

1. Orbitals of different energy level
2. Orbitals of different energy content
3. None of the above
4. Orbitals of same energy content

Q. Weakest bond is formed by the orbital overlapping of:-

1. $s{p}^2-s$
2. $s{p}^3-p$
3. $s-s$
4. $p-p$ co-axial

Q. Draw the diagram of formation of $HCl$ molecule with orbital overlaping.