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Q. What is the increase in the proportion of oxygen in a chemical reaction called?
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Q. The urine sample of a diabetic patient contain
Q. Permanent hardness of water may be removed by addition of
Q. Which of the most reactive metal?
Q. The constituents of automobile exhaust that can cause cancer is/are :
Q. Which among the following oxides cause the Acid rain ?
Q. The sugar unit present in DNA is
Q. Which of the properties of the elements is a whole number ?
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