CameraIcon

SearchIcon

MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Extraction of Aluminium

A layer of co...

Question

A layer of coke is spread over bayzite during extraction of aluminium. This acts as an ____________.

A

flux

No worries! We‘ve got your back. Try BYJU‘S free classes today!

B

slag to remove impurities

No worries! We‘ve got your back. Try BYJU‘S free classes today!

C

reducing agent

No worries! We‘ve got your back. Try BYJU‘S free classes today!

D

insulation and does not allow heat to escape

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Open in App

Solution

The correct option is D insulation and does not allow heat to escape
A layer of powdered coke is spread over bauxite (molten electrolyte) during extraction of aluminium. This acts as an insulation and does not allow heat to escape and prevents oxidation.

Suggest Corrections

thumbs-up

0

Similar questions

Q. A layer of coke is spread over bauxite during extraction of aluminium. This act as a/an

Q. (a) Give the chemical name and formula of 'cryolite'.
(b) What is the function of cryolite in the extraction of aluminium, other than acting as a solvent for bauxite?

Q. (i) Name the solution used to react with Bauxite as a first step in obtaining pure aluminium oxide, in the Baeyer's process.
(ii) Write the equation for the reaction where the aluminium oxide for the electrolytic extraction of aluminium is obtained by heating aluminium hydroxide.
(iii) Name the compound added to pure alumina to lower the fusion temperature during the electrolytic reduction of alumina.
(iv) Write the equation for the reaction that occurs at the cathode during the extraction of aluminium by electrolysis.
(v) Explain why it is preferable to use a number of graphite electrodes as anode instead of a single electrode, during the above electrolysis.

During mushroom cultivation, a step where a thin layer of soil is spread over the compost is known as:

Q. During mushroom cultivation, a step where a thin layer of soil is spread over the compost is known as ________.

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Metallurgy of Aluminium

CHEMISTRY

Watch in App

explore_more_icon

Explore more

Extraction of Aluminium

Standard X Chemistry

Join BYJU'S Learning Program

CrossIcon