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Q. The metal generally mixed with gold while making ornaments is
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Q. Bleaching action of moist sulphur di-oxide is as of its
Q. The metal used to galvanise iron to protect it from rusting is
Q. The gas evolves during the fermentation of a sugar solution is
Q. Which of the following of the process is known as nitrification
Q. The compound that has the least value for octane number is:
Q. The substance that is least prone to catch and spread fire is
Q. Which element in the periodic table forms maximum number of compounds ?
Q. The state of matter that takes the shape of the vessel in which it is stored is called
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