Purification And Characterisation Of Organic Compounds Question 109
Question: Purpose of smelting of an ore is
[MP PMT 1990, 2001; Kurukshetra CEE 1998; RPMT 2000]
Options:
A) To oxidise it
B) To reduce it
C) To remove vaporisable impurities
D) To obtain an alloy
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Answer:
Correct Answer: B
Solution:
Smelting is a process of reducing metal oxide to metal by means of coke or $ CO $ .
$ Fe_2O_3+3C\to 2Fe+3CO $
$ Fe_2O_3+3CO\to 2Fe+3CO_2 $