SSC JE Mechanical Engineering 2017 Set 1 Paper

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Question : 83 of 200
 
Marks: +1, -0
Read the pairs given below.
NameFormula1.AcetoneCH2OHCHOHCH2OH2.EthanalCH3CHO3.FormaldehydeHCHO4.GlycerolCH3COCH3
Which of the above pairs are correctly matched?
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