Chemistry Purandar

Estimation of Cu from Brass
Standardization of Sodium thiosulphate solution (Na2S2O3, 0.025 N)

*07 Physical States of Matter*

Matter can exist in three different forms,
01. *Solid,*
02. *Liquid* and
03. *Gas* –
these physical states are well known.

04. *Plasma,*
consists of highly charged particles with extremely high kinetic energy.

05. *Bose-Einstein Condensate,*
a state of matter that occurs very close to absolute zero. At this extremely low temperature, molecular motion almost stops and atoms begin to clump together.

06. *Quark-Gluon Plasma,*
the state of matter with the highest energy level. It is basically the building blocks of matter existing in a soup resembling conditions just after the Universe was created.

07. *Degenerate Matter,*
the highly compressed state of matter which often exists in the cores of massive stars. The core's gas is super compressed and the primary source of pressure is no longer thermal, but quantum.

Everything is composed of these..

Estimation of Manganese using Volhard's method..
End point of titration - Colourless to Faint Pink..