(a) i) An organic compound X contains 40% carbon, 6.67% hydrogen, the rest being oxygen. If X has a relative molecular mass of 60, determine its

(i) empirical formula (ii) molecular formula. [H = 1 ; C = 12; O = 16]

 

(b) An alkanoic acid Y has a relative molecular mass of 74.

(i) State the functional group of Y

(ii) What t of reaction is involved when Y is converted to an alkanoate?

(iii) Determine the structural formula of Y.

(iv) Write an equation for the reaction between Y and sodium

(v) If X in (a) above boils at 118°C and belongs to the same homologous series as Y, state with reason, whether the boiling point of Y will be equal to, higher or lower than 118°C.

 

(c)(i) What is fermentation?

(ii) Write an equation for the fermentation of glucose.

(iii) What must be added to glucose solution to make it ferment?

(iv) Explain why a tightly corked grass bottle filled to the brim with fresh palm wine shatters on standing.