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Q. Which of the following one of the following does not contain silver -
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Q. The manufacturing of iron from ironore involves the process of
Q. Which one of the following is the major constituent of biogas
Q. The vast resources of unutilised natural gas can be used in the production of
Q. Wood Spirit is which of the following ?
Q. Kinetic theory of gases provide a base for
Q. Activated Charcoal is used to remove colouring matter from pure substances by
Q. Water can be separated from alcohol water mixture by
Q. Atoms having same no of neutron but different no of electrons or protons are called
Q. Sun seems red in colour at sunrise & sunset due to
Q. The gas used to dilute oxygen for breathing by deep sea divers is:
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