(a) What happens when propanioic acid is warmed with methanol in the presence of a few drops of concentrated suphuric acid? Write equation of the reaction involved .
(b) What change will you oobserve if you test soap solution with a litmus paper (red and blue)? Give reason for your observation.
(c ) What is meant by denatured alcohol ? What is t he need to denature alcohol?

What change will you observe if you test soap with litmus paper (red and blue)?

(a) Wrtie the functional groups present in an aldehyde and a carboxylic acid. (b) How would you distinguish between an alcohal and a carboxylic acid ? © what happens when ethanoic acid is warmed with ethanol in the presence of a few drops of concentrated sulphuric acid ? write equation of the reaction involved. (d) What happens when a piece of sodium metal is added to ethanol ? write equation of the reaction involved. (e) Describe how ethene can be prepared from ethanol ? Give an equation of the reaction and state the condittions.

(a) What happens when ethanol reacts with ethanoic acid in the presence of a little of concentrated suphuric acid ? Wite equation of the reaction involved. (b) What happens when ethanol is heated with concentrated suphuric acid at 170^(@)C ? Write the equation f the reaction which takes place.

What changes are observed when a soap solution is tested with a red and a blue litmus paper ?

(a). What happens when dilute hydrochloric acid is added to sodium carbonate? Write a balanced chemical equation of the reaction involved. (b). Which gas is liberated when dilute hydrochloric acid reacts with sodium carbonate? How will you test for the presence of this gas?

(a). What happens when an acid reacts with a metal carbonate? Explaini with the help of an example. Write chemical equation of the reaction involved. (b). What happens when carbon dioxide gas is passed through lime water: (i). For a short time? (ii). for a considerable time? Write equations of teh reactions involved.