To separate oil from water, add a solution of soluble ionic salt to the solution. Distillation, which involves boiling and condensing the water, is another option, as well as partially freezing the oil and water combination and discarding one-fourth to one-third of the unfrozen water.
The correct answer among the choices given is the third option. When the kinetic energy of particles on a solid state increases, the particles <span>vibrate fast enough to overcome the forces of attraction holding them together and become a liquid. This is due to the increase in the energy of motion in each particle.</span>
C because heat try’s to make every thing the same temp
" n " is called principle quantum number.
Here , n = 2
which means ,
number of shells = 2
.: l ( azimuthal quantum no: ) / ( n - 1 ) = 0 , 1
& m ( magnetic quantum number ) = -1 , 0 , +1 .....
s ( spin quantum number ) = ± 1/2 .....
Coming to this question ,
here n = 2 ....
l = 1 ( possible ) .....
ml = -2 [ not possible , because it can only be a number from this set ( -1 , 0 , +1 ) ] .....
.: this set is not possible
