On the basis of data given above, predict which of the following gases shows least adsorption on a definite amount of charcoal ?
Van der Waals forces
can be repulsive
can be attractive
include London dispersion forces
all of the above
- Acetic Acid
- Ethylene glycol
- I < II < III
- II < I < III
- III < I < II
- III < II < I
(Where r is the distance between the two atoms)
- Ion - ion interaction
- Ion - dipole interaction
- London force
- Dipole - dipole interaction
The interaction energy of London force is inversely proportional to sixth power of the distance between two interacting particles but their magnitude depends upon
(a) charge of interacting particles
(b) mass of interacting particles
(c) polarisability of interacting particles
(d) strength of permanent dipoles in the particles
In the following question, a statement of Assertion (A) followed by a statement of Reason (R) is given. Choose the correct option out of the choices given below in each question.
Assertion (A) Three states of matter are the result of the balance between intermolecular forces and thermal energy of the molecules.
Reason (R) Intermolecular forces tend to keep the molecules together but the thermal energy of molecules tends to keep them apart.
(a) Both A and R are true and R is the correct explanation of A
(b) Both A and R are true and R is not the correct explanation of A
(c) A is true but R is false
(d) A is false but R is true
Suggest the most important type of intermolecular attractive interaction in the following pairs.
(i) n - hexane and n - octane
(ii) I2 and CCl4
(iii) NaClO4 and water
(iv) Methanol and acetone
(v) Acetonitrile (CH3CN) and acetone (C3H6O)