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Planar defects
* Grain boundaries occur where the crystallographic direction of the lattice abruptly changes. This usually happens when two crystals start growing separately and then meet.
* Anti phase boundaries happen in ordered alloys: in this case, the crystallographic direction remains the same, every side of the boundary has an opposite phase: For example if the ordering is usually ABABABAB, an anti phase boundary takes the form of ABABBABA.
how will you prepare acetal from methanal?
the full reaction mechanism for production of acetic acid from feed of ethylene via wacker process with acetaldehyde as an intermediate
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Zinc has hcp structure. In a unit cell of zinc, the zinc atoms occupy 74% of volume of unit cell.
full process of ammonia synthesis
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