Which of the following metals can displace zinc from a
solution of zinc sulphate?
1 Lead
2 Magnesium
3 Iron
4 Mercury
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Which of the following is used to coagulate synthetic fibers from solution? 1 Hydrochloric acid 2 Sulphuric acid 3 Nitric acid 4 None of these
Titanium is purified by 1 Zone refining 2 Electrolysis 3 Van Arkel method 4 Hydraulic washing
Which are the two reactors at the indira gandhi centre for atomic research ( igcar )?
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Which of the following is used as a filler in rubber tyres? 1 Graphite 2 Coal 3 Coke 4 Corbon black
Which of the following fertilizers leaves acidic residue? 1 Urea 2 Ammonium phosphate 3 Ammonium sulphate 4 None of these
A team of u.n scientists visited thumba?
What is practical frequency. ? How create a frequency band?
Why Colours is Important in Our Daily Life???
we know in mathematics that a matrix is an arrangement (array) of different elements , memebers . Then, how does the movie "Matrix" relate with this concept. In movie "Matrix" we have seen that it shown a war between machines & humans. And we know to operate machines we need code like 0 1 & 1 0 . How ? explain ?
the colour of a star is an indication of its?
Which are the important pulsating nebulae?