CameraIcon

SearchIcon

MyQuestionIcon

1

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

Overview of General Metallurgical Processes

Roasting as w...

Question

Roasting as well as calcination of an ore is always doneits melting point.

A

above

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

B

below

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

C

at

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

Open in App

Solution

The correct option is B below
During roasting as well as calcination, the ore is always heated below its melting point. This is because if the ore melts, the impurities in them might get mixed, making it tough to remove them.

Suggest Corrections

thumbs-up

0

Similar questions

Q. Choose the correct option for the following statements
Statement - 1: Sulphide ore is firstly converted to oxide and then it is subjected to reduction for the extraction of metal.
Statement - 2: In calcination, the ore is heated in a regular supply of air in a furnace at a temperature below melting point of the calcined product.
Statement - 3: Roasting involves heating in absence of air until volatile matter escapes.
Statement - 4: In the metallurgy of aluminium, purified

A l_{2} O_{3}

N a_{3} A l F_{6}

C a F_{2}

which increases the melting point of the mix.

Q. Differentiate between the following.
(i) Minerals and Ores
(ii) Calcination and Roasting

Q. Give the reaction involved during extraction of zinc from its ore by:

(a) roasting of zinc ore.
(b) calcination of zinc ore.

Question 55
Give the reaction involved during extraction of zinc from its ore by

(a) roasting of zinc ore.
(b) calcination of zinc ore.

Q. A sulphide ore is converted into metal oxide by the process of:
(a) carbonation
(b) roasting
(c) calcination
(d) anodising

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Overview of General Metallurgical Processes

CHEMISTRY

Watch in App

explore_more_icon

Explore more

Overview of General Metallurgical Processes

Standard X Chemistry

Join BYJU'S Learning Program

CrossIcon