This chapter is currently out of syllabus
1
AIPMT 2015
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
2
AIPMT 2015 Cancelled Paper
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
''Metals are usually not found as nitrates in their ores.'' Out of the following two (I and II) reasons which is/are true for the above observation?
I. Metal nitrates are highly unstable.
II. Metal nitrates are highly soluble in water.
I. Metal nitrates are highly unstable.
II. Metal nitrates are highly soluble in water.
3
NEET 2013 (Karnataka)
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
The metal oxide which cannot be reduced to metal by carbon is
4
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
Questions Asked from Processes of Isolation of Elements (MCQ (Single Correct Answer))
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