Disproportionation is a specific type of redox reaction in which a species is simultaneously reduced and oxidised to form two different products.he oxidation state of oxygen is -1/2 in the superoxide free radical anion, -1 in hydrogen peroxide and 0 in dioxygen. 1  In the Cannizzaro reaction, an aldehyde is converted into an alcohol and a carboxylic acid. 2  In the related Tishchenko reaction, the organic redox reaction product is the corresponding ester.
A solid-state drive (SSD, also known as a solid-state disk) is a solid-state storage device that uses integrated circuit assemblies as memory to store data persistently.
With a notebook, youâre generally stuck with a single drive. But with desktop PCs (and with large notebooks that support the installation of a second disk drive), you can do what Iâve done: use a fast SSD as a Windows 7 system drive and install a conventional hard disk for use as a dedicated data drive.