Write the significance/applications of dipole moment.
In heteronuclear molecules, polarization arises due to a difference in the electronegativities of the constituents of atoms. As a result, one end of the molecule acquires a positive charge while the other end becomes negative. Hence, a molecule is said to possess a dipole.
The product of the magnitude of the charge and the distance between the centres of positive-negative charges is called the dipole moment (μ) of the molecule. It is a vector quantity and is represented by an arrow with its tail at the positive centre and head pointing towards a negative centre.
Dipole moment (μ) = charge (Q) × distance of separation (r)
The SI unit of a dipole moment is ‘esu’.
1 esu = 3.335 × 10–30
1. Peptization is a process of
3. What is the maximum Water Vapour content in the atmosphere?
4. Helium gas is filled in ballons because
5. Question 10.30:Which of the alkali metal is having least melting point?(a) Na (b) K (c) Rb (d) Cs
6. The most commonly used chemicals in the artificial rainmaking or cloud seeding are
7. Which of the following is a supercooled liquid?
8. What is the maximum Water Vapour content in the atmosphere?
9. The most common cause of pollution of air is
10. Which of the following is used to remove rust stains on cloth?