Please answer the following questions.
1. Using sketches, demonstrate why the addition of HCN to 2-butanone yields a racemic mixture of chiral products. Circle the chiral carbon in each product.
2. Describe spectroscopic or chemical tests to distinguish between the following pairs of compounds:
a. 2-pentanone vs 2-pentanol
b. 2-pentanone vs. pentanal
This solution involves explanations and diagrams for organic compounds and spectroscopic/chemical tests.