CBSE Class 10: Alcohols and Carboxylic Acids Videos | Esterification and Saponification

• properties of ethanol ?
• A compound 'C' with molecular formula C2H4O2 reacts with Na metal to form compound 'R' and evolve a gas which burns with pop sound. 'C' reacts with an alcohol 'A' in presence of an acid to form a compound C2H4O2.  On addition of NaOH to 'C' it gives 'R' and water. 'S' on treatment with NaOH gives back 'R' and 'A'. Identify C,R,A,S and write down the reactions involved.  
  
• Why is unsaturated fatty acids are added in soap
• A carbon compound ‘P’ on heating with excess conc.  H2 SO4  forms another carbon compound ‘Q’ which on  addition of hydrogen in the presence of nickel catalyst  forms a saturated carbon compound ‘R’. One molecule  of ‘R’ on combustion forms two molecules of carbon  dioxide and three molecules of water. Identify P, Q  and R and write chemical equations for the reactions  involved. 
• why soap is collidal in solution? how it does ion-ion repultion?
• how are ester formed with reaction
• I have a doubt in science please clear my doubt.
  
• The general formula of an ester where R represents an alkyl group is ? what is ans and explain?
• what is dring solution ?
• Difference between toilet soaps and bathing bars?

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