The gas used in the manufacture of vanaspati from vegetable oil is
hydrogen
oxygen
nitrogen
carbon dioxide
The gas used in the manufacture of vanaspati from vegetable oil is
The ionic radii of N3-, O2-, F- and Na+ follows the order |
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The graphite rods in the nuclear reactor |
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The first metal used by man was |
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The hydronium ion is |
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The most electropositive elements among the following is |
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The method that cannot be used for removing permanent hardness of water is |
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The following are the half lives of four active isotopes. Which one of the following is the most dangerous to handle? |
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The gas used for artificial ripening of green fruit is |
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Zone refining is used for the purification of |
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The main chemical constituent of the oil of cardamom which is responsible for flavour of this oil is |
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