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Q. Nylon threads are made of
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Q. The main chemical constituent of clay is
Q. A disaccharide is formed by the chemical bonding of
Q. Which among the following impurity in drinking water causes the “Bamboo Spine” disorder?
Q. The maximum number of covalent formed by nitrogen is
Q. The process of covering water pipes made of Iron with Zinc layer to prevent corrosion is called :
Q. Iron filings can be separated from a heterogeneous mixture using the technique of
Q. When water itself combines chemically with some element or mineral it is called
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