Time management is very much important in IIT JAM. The eduncle test series for IIT JAM Mathematical Statistics helped me a lot in this portion. I am very thankful to the test series I bought from eduncle.
Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
>
>
>


Sajan sarthak Best Answer
Reconstructive polymorphism involves extensive rearrangement of the crystal structure and requires breaking of chemical bonds and reassembling the atoms into a different crystal structure. In silica (SiO2), commonly there 3 reconstructive polymorphism 1. Crystobalite :-Tridymite (High temp polymorphic transformation) 2. Coesite:- Stishovite (High pressure polymorphic transformation) 3. Tridymite :-High Quartz