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Friday, April 21, 2017

Chemistry

1.The gas used for artificial ripening of green fruit is
ethylene ethane carbon dioxide acetylene

2.Zone refining is used for the purification of
Au Ge Ag Cu

3.The main chemical constituent of the oil of cardamom which is responsible for flavour of this oil is
cineole engenol geraniol limonene

4.The high reactivity of fluorine is due to
its high electro negativity small size of fluorine atom availability of d-orbitals strong F - F bond

5.The major constituent of air is
nitrogen carbon dioxide oxygen hydrogen

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