1B Carbonyls    /23

    1)          Draw the displayed formula for 2 - methyl pentanal  [1]

    2)          State and explain the bonding in the carbonyl group.  You may wish to include a diagram:  [3]       

    3)          Name and draw the structure of the product(s) formed when 2 methyl propanoic acid is treated with NaBH₄:  [4]

    4)          Complete the mechanism for the reduction of this aldehyde:  [6]

:H-

    5)          Describe a simple chemical test to distinguish between an aldehyde and a ketone:  [4]

    6)          Outline a chemical process to determine which aldehyde or ketone you have:  [5]