Look at the figure and answer the following questions: (a) What change wouldyou observe in the calcium hydroxide solution taken in tube B? (b) Write the reaction involved in A and B respectively. (c ) If ethanol is given instead of ethanoic acid, would you expect the same change? (d) How can a solution of lime water be prepared in the laboratory?

Look at the figure and answer the following questions: (a) What chang

1.	Look at the figure and answer the following questions: (a) What change wouldyou observe in the calcium hydroxide solution taken in tube B? (b) Write the reaction involved in A and B respectively. (c ) If ethanol is given instead of ethanoic acid, would you expect the same change? (d) How can a solution of lime water be prepared in the laboratory?
Answer» Solution :(a) It will turn milky. (b) `CH_(3)COOH+NaHCO_(3) to CH_(3)COONa+H_(2)O+CO_(2)` (in A) `Ca(OH)_(2)+CO_(2) to CaCO_(3)+H_(2)O` (in B) With excess `CO_(2)`, milkiness disappears. (c ) As `C_(2)H_(5)OH and NaHCO_(3)` do not react, a similar change is not expected `C_(2)H_(5)OH+NaHCO_(3) to` No change (d) The lime water is prepared by dissolving calcium oxide in water and decanting the supernatant liquid.