Option C coz it should be ( CNH4)2. Hope i cleared your doubt
Answer:
The Bayer process is the principal industrial means of refining bauxite to produce alumina (aluminium oxide) and was developed by Carl Josef Bayer. Bauxite, the most important ore of aluminium, contains only 30–60% aluminium oxide (Al2O3), the rest being a mixture of silica, various iron oxides, and titanium dioxide.
total pressure = ( 705 torr + 231.525torr) = 936.525torr
In an orderly, repeating, three-dimensional pattern called a crystal lattice.