The process of zone refining is used for
(d) All of these
Berly is an important mineral of
Which of the following is an important source of gold?
(b) Alluvial gravel
Which of the following alkaline earth metals forms covalent compounds?
The colour given by calcium to the flame is
(b) Brick red
(c) Crimson red
The most common actinide is
The newspaper brought out by Bal Gangadhar Tilak to promote nationalism was
Who was the Viceroy of India at the time of the formation of the Indian National Congress?
Which of the following papers was essentially the mouth-piece of the policies of liberals?
(a) Free Press Journal
(b) Young India
(c) New India