1.

 State two uses of ethylene and acetylene.

Answer»

 Uses of ethylene

(i) It is used in the manufacture of polyethylene which is a valuable plastic. 

(ii) It is used in the artificial ripening of fruits. 

Uses of acetylene: 

(i) It is used in oxyacetylene flame which is used for cutting and welding of metals. 

(ii) It is used in the manufacture of acetaldehyde, acetic acid etc.



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