SO2 has a bent molecular geometry due to the lone pair of electrons on the sulfur atom, which causes electron pair repulsion and distorts the shape.
O3 has a central oxygen atom surrounded by one lone pair and three bonding electrons. This results in a bent molecular geometry, as the lone pair causes distortion in the structure.
I3- has a linear geometry. The central iodine atom has three lone pairs, and the bonding electrons are delocalized, maintaining a linear structure.
N3- is a linear molecule, as it consists of a chain of three nitrogen atoms connected by alternating double and single bonds, with delocalization of electrons across the structure.
So, Two molecules/ions, SO2 and O3, have a bent shape. The other two, I3- and N3-, have a linear form.
Given below are two statements regarding conformations of n-butane. Choose the correct option. 
Consider a weak base \(B\) of \(pK_b = 5.699\). \(x\) mL of \(0.02\) M HCl and \(y\) mL of \(0.02\) M weak base \(B\) are mixed to make \(100\) mL of a buffer of pH \(=9\) at \(25^\circ\text{C}\). The values of \(x\) and \(y\) respectively are
In the given figure, the blocks $A$, $B$ and $C$ weigh $4\,\text{kg}$, $6\,\text{kg}$ and $8\,\text{kg}$ respectively. The coefficient of sliding friction between any two surfaces is $0.5$. The force $\vec{F}$ required to slide the block $C$ with constant speed is ___ N.
(Given: $g = 10\,\text{m s}^{-2}$) 
The equivalent resistance between the points \(A\) and \(B\) in the given circuit is \[ \frac{x}{5}\,\Omega. \] Find the value of \(x\). 
Method used for separation of mixture of products (B and C) obtained in the following reaction is: 
A coordination compound holds a central metal atom or ion surrounded by various oppositely charged ions or neutral molecules. These molecules or ions are re-bonded to the metal atom or ion by a coordinate bond.
A coordination entity composes of a central metal atom or ion bonded to a fixed number of ions or molecules.
A molecule, ion, or group which is bonded to the metal atom or ion in a complex or coordination compound by a coordinate bond is commonly called a ligand. It may be either neutral, positively, or negatively charged.