Related Questions

In which part of the cinchona plant quinine occurs naturally?
A Root
B Fruit
C Seed
D Bark
Quinine cures a man --------- malaria.
A of
B from
C up
D over
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 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
Which of the following metals can be extracted from its ore by both pyrometallur-gical as well as hydrometallurgical methods ?
A Copper
B Zinc
C Both A & B
D Neither A nor B
Which metal is extracted from sea water?
A Potassium
B Magnesium
C Aluminium
D Beryllium
'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
Sisal fibers extracted from-
A Sisal fibers extracted from
B leaf
C seeds
D fruits
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

Next steps