Gold and silver are extracted from their respective ores by _______
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The bleeding of a wound is stopped by the application of ferric chloride because_____
Modern periodic table is based on atomic number of the elements. The significance of atomic number was proved by the experiment of ________
A bond formed by the transfer of electrons between atoms of the elements is called
Wavelength of which of the following colours of the visible spectrum of light are maximally absorbed by green plants________
A mixture of sand and naphthalene can be seperated by __________
In a Cinema hall, the distance between the projector and the screen is increased by 2%. Then the intensity of illumination on the screen is
'River' Brand of MP3 player has been launched in india by Salora International. The Brand which is competing with apple's ipod is owned by which company?