What are polar and non-polar molecules ? Give their examples.
What are polar and non-polar molecules ? Give their examples.
The molecules in which the centres of positive charges and of negative charges lie at the same place, therefore, their dipole moment is zero are called non-polar molecule. $\mathrm{CO}_{2}$ and $\mathrm{CH}_{4}$ are examples.
They develop a dipole moment when an electric field is applied.
But in some molecules, the centres of negative charges and of positive charges do not coincide. Therefore they have a permanent electric dipole moment even in the absence of an electric field. Such molecules are called polar molecules. $\mathrm{H}_{2} \mathrm{O}, \mathrm{HCl}$ are examples.
Similar Questions
A parallel plate capacitor, partially filled with a dielectric slab of dielectric constant $K$ , is connected with a cell of emf $V\ volt$ , as shown in the figure. Separation between the plates is $D$ . Then
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What are called polar molecules and non-polar molecules ? Both are Give examples.
What are called polar molecules and non-polar molecules ? Both are Give examples.
An air capacitor of capacity $C = 10\,\mu F$ is connected to a constant voltage battery of $12\,V$. Now the space between the plates is filled with a liquid of dielectric constant $5$. The charge that flows now from battery to the capacitor is......$\mu C$
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Write the capacitance of parallel plate capacitor with medium of dielectric of dielectric constant $\mathrm{K}$.
Write the capacitance of parallel plate capacitor with medium of dielectric of dielectric constant $\mathrm{K}$.
A force $F$ acts between sodium and chlorine ions of salt (sodium chloride) when put $1\,cm$ apart in air. The permittivity of air and dielectric constant of water are ${\varepsilon _0}$ and $K$ respectively. When a piece of salt is put in water electrical force acting between sodium and chlorine ions $1\,cm$ apart is
A force $F$ acts between sodium and chlorine ions of salt (sodium chloride) when put $1\,cm$ apart in air. The permittivity of air and dielectric constant of water are ${\varepsilon _0}$ and $K$ respectively. When a piece of salt is put in water electrical force acting between sodium and chlorine ions $1\,cm$ apart is