Related Questions

'The old order changeth, yielding place to new. ' This line is extracted from Tennyson's poem -
A The Lotos- Eaters
B Tighouns
C Locksley Hall
D Morte d' Arthur
By which of the following processes are metals of high reactivity extracted from purified molten ore?
A Reduction by an appropriate reducing agent
B Roasting
C Electrolysis
D Calcination
Which metal is extracted from sea water?
A Potassium
B Magnesium
C Aluminium
D Beryllium
The metal that is usually extracted from sea water is
A Ca
B Na
C K
D Mg
In a regenerative feed heating cycle, the optimum value of the fraction of steam extracted for feed heating
A Decreases with increase in Rankine cycle efficiency
B Increases with increase in Rankine cycle efficiency
C Is unaffected by increase in Rankine cycle efficiency
D None of the above
Which of the following metals can not be extracted by pyrometallurgical process from its sulphide ore?
A Copper
B Mercury
C Lead
D None of these
Gasoline extracted from natural gas (by compression and cooling) is called the __________ gasoline.
A Polymer
B Unleaded
C Casing head
D Straight run
The metal extracted from Bauxite is :
A Silver
B Copper
C Manganese
D Aluminium
Iron is extracted from
A Cinnabar
B Haematite
C Bauxite
D Dolomite
From which one of the following is quinine extracted?
A Sarpagandha
B Opium
C Cinchona
D Datura

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