Chemistry Forum Nasik

https://youtu.be/Ax5leZC1o_4

MHT CET Micro Study Plan Whatsapp number: 7823859958 telegram link: https://t.me/waghschemistry

CET/JEE/NEET Key Points.
► The boiling point of solution is greater than pure solvent.

► the freezing point and V.P of solution is lower than pure liquid.

► one molal solution of any non electrolyte and non volatile substance will have the same F.P, B.P and vapour pressure.

► the increase in boiling point or decrease in F.P of electrolyte solution depends on the extent of ionization and number of ions present in the formula unit.

► e.g. 1 molal solution of NaCl have two moles of ions and will have carry double change than 1 molal solution of sugar.

► Liquids have three types of properties;
1; Colligative properties; depends on the number of solute particles.
2; constitutive properties; depends on the arrangement of particles.
3; additive properties; the properties of individual particle like Atomic mass or molecular mass

► When the attractive forces between the solute and solvent is more than solute solute attraction, the V.P decreases, B.P increases, called negative deviation.

► when the attractive forces b/w solute solvent is lower than solute solute interaction, V.P increases, B.P decreases and is called positive

14th March 2019

Class 12th starts from 15 feb 2019

Obstacles are challenges for winners and excuses for losers.

Regular 11 th Science starts from 11th June.

14 march 2018

The happiest molecule in the world 😃