Q68 of 312 Page 266

A neutral organic compound is warmed with some ethanoic acid and a little of cone. H2SO4. Vapours having sweet smell (fruity smell) are evolved. What type of functional group is present in this organic compound?

Alcohol group (-OH) is present in the organic compound.

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66 A neutral organic compound X of molecular formula C2H6O on oxidation with acidified potassium dichromate gives an acidic compound Y. Compound X reacts with Y on warming in the presence of cone. H2SO4 to give a sweet smelling substance Z. What are X, Y and Z? 67 Consider the following organic compounds:

HCHO, C2H5OH, C2H6, CH3COOH, C2H5Cl


Choose two compounds which can react in the presence of cone. H2SO4 to form an ester. Give the name and formula of the ester formed.

 69 The structural formula of an ester is:


Write the formula of the acid and the alcohol from which it is formed.

 70 Consider the following organic compounds:

CH3OH, C2HsOH, CH3COCH3, CH3COOH, C2H5COOH, C4H9COOC2H5, CH4, C2H6, CH3CHO, HCHO


Out of these compounds:


(a) Which compound is most likely to be sweet-smelling?


(b) Which compound on treatment with cone. H2SO4 at 170 �C forms an alkene?


(c) Which compound on repeated chlorination forms chloroform?


(d) Which compound is added to alcohol to denature it?


(e) Which compound is a constituent of vinegar?


(f) Which compound is used to sterilise wounds and syringes?