What drink was invented by Charles Leiper Grigg in 1929?
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Which of the following metals forms an amalgam with other metals ?
For purifying drinking water alum is used
In purifying drinking water alum is used for coagulation of mud particles.
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The first Indian who was choosen as the secretary general of commonwealth is
Buying and selling goods over the internet is called
Buying and selling goods over the internet is called E - Commerce.
Which Five Year Plan was a failure due to India-China war followed by Indo-Pakistan?
A particle which is similar to electron is
Who was the first person to patent the JET ENGINE?