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Q. Which of the following types of Noble gas is used for unconsciousness?
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Q. Most of the explosions in mines occur due to the mixing of
Q. Roxarsone, an arsenic containing nitrophenol is used as
Q. The acid which fails to liberate carbon dioxide from sodium bicarbonate is
Q. Which of the following is a non-metal that remains liquid at room temperature?
Q. What is the ‘non-stick’ substance used in cookwares ?
Q. Which of the following is the major constituent of LPG?
Q. The number of neutrons present in an element having mass number 226 & atomic number 88 is:
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