The dispersed phase and dispersion medium in smoke, respectively, are:
Smoke is a colloidal system in which solid particles (such as carbon and other particulates) are dispersed in a gaseous medium (air).
- Dispersed Phase: Solid particles
- Dispersion Medium: Gas (air) Such systems are categorized as aerosols, which include both smokes (solid in gas) and fogs (liquid in gas).
The mass of particle X is four times the mass of particle Y. The velocity of particle Y is four times the velocity of X. The ratio of de Broglie wavelengths of X and Y is:
The correct set of four quantum numbers for an electron in a 4d subshell is:
Electronic configurations of four elements A, B, C, and D are given below: \[ {A: } 1s^2 2s^2 2p^4, \quad {B: } 1s^2 2s^2 2p^6 3s^1, \quad {C: } 1s^2 2s^2 2p^6, \quad {D: } 1s^2 2s^2 2p^5 \] The correct order of increasing tendency to gain electrons is:
Which of the following sets are not correctly matched?
i. XeF₄ - sp³
ii. SF₄ - sp³d
iii. SO₃ - sp²
iv. SnCl₂ - sp
The number of molecules having one lone pair of electrons on the central atom is from the following list: SnCl$_2$, XeF$_6$, SO$_3$, ClF$_3$, BrF$_5$, H$_2$O, XeO$_3$.