Question

The correct procedure of heating iron-sulphur mixture to prepare iron
sulphide is:
(a) Heat the powder mixture at the base of the test tube using a blue
flame throughout
(b) Heat the iron filings and sulphur mixture in the middle of the test
tube using yellow flame throughout.
(c) Heat the powder mixture at the top of the test tube using an orange
flame throughout.
(d) Heat the iron filings-sulphur mixture at 3/4 quarters of the test tube using a red flame throughout.​

Answer 1

Answer:

so that convert raw material to be able to you and your family

Answer 2

Answer:

correct answer is D

Explanation: