In the $Hoopes$ process,what is the bauxite ore treated with?

  • A
    $NaOH$ (concentrated)
  • B
    Concentrated $Na_2CO_3$
  • C
    $C$ and $N_2$ at $1000 \ ^oC$
  • D
    $NaOH, Ca(OH)_2$

Explore More

Similar Questions

Which of the following ores is concentrated by the froth flotation process?

In the purification of bauxite by Hall's process:

Froth flotation method is used for the concentration of which type of ores?

Magnetic separation method is applicable for the concentration of which of the following ores?

Which of the following statements is not correct?
$(i)$ Froth-floatation is used for removing gangue from sulphide ore.
$(ii)$ Cresols are used to stabilise the froth.
$(iii)$ Sodium cyanide can be used as depressant for preferential separation.
$(iv)$ Aniline can be used as froth enhancer.

Vedclass Products

For Students

Vedclass Test Series

Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.

Start Free Trial
For Teachers

Exam Paper Generator

Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.

Try Free
For Institutes

Online Exam Module

Live online exams with unlimited students, 360° analytics & white-label branding.

See Demo