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1
NEET 2013
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Roasting of sulphides gives the gas X as a byproduct. This is a colourless gas with choking smell of burnt sulphur and causes great damage to respiratory organs as a result of acid rain. Its aqueous solution is acidic, acts as a reducing agent and its acid has never been isolated. The gas X is
2
AIPMT 2012 Prelims
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
In the extraction of copper from its sulphide ore, the metal is finally obtained by the reduction of cuprous oxide with
3
AIPMT 2012 Prelims
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Aluminium is extracted from alumina (Al2O3) by electrolysis of a molten mixture of
4
AIPMT 2012 Prelims
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Which one of the following is a mineral of iron?
Questions Asked from Processes of Isolation of Elements (MCQ (Single Correct Answer))
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