The ore which is found in abundance in India is

The ore which is found in abundance in India is

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1) The material which can be deformed permanently by heat and pressure is called a

2) The main chemical constituent of clay is

3) Zone refining is used for the purification of

4) The gas used in the manufacture of vanaspati from vegetable oil is

5) The formula C₆H₅-CO-CH₃ represents