Which of the following is used to remove sili | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(C) In the Serpeck's process,bauxite $(Al_2O_3 \cdot 2H_2O)$ is heated with coke and nitrogen at $1800 \ ^\circ C$ to form aluminium nitride $(AlN)$.$

Vedclass · Accepted Answer

Coke

Vedclass · Answer

(C) In the Serpeck's process,bauxite $(Al_2O_3 \cdot 2H_2O)$ is heated with coke and nitrogen at $1800 \ ^\circ C$ to form aluminium nitride $(AlN)$.$Al_2O_3 + 3C + N_2 \rightarrow 2AlN + 3CO$.Silicon dioxide $(SiO_2)$ is an impurity present in bauxite. It is removed by reacting with coke to form silicon carbide $(SiC)$ or by reacting with $CaO$ if present as a flux,but in the specific context of Serpeck's process,the reduction of $SiO_2$ by coke is the primary mechanism to eliminate it as volatile $SiO$ or $SiC$.

Which of the following is used to remove silicon dioxide in the Serpeck's process for the purification of bauxite?

Similar Questions

Why is the extraction of copper from pyrites more difficult than that from its oxide ore through reduction?

In the cyanide process for the extraction of $Ag$ from argentite,the oxidizing agent and reducing agent used are respectively:

$Pb$ and $Sn$ are extracted from their ores by which of the following methods?

Observe the following Ellingham diagram,and identify the incorrect statement regarding it.

In the alumino-thermite process,$Al$ acts as:

Vedclass Test Series

Exam Paper Generator

Online Exam Module