CHM292 PRACTICAL CHEMISTRY IV -PHYSICAL AND ORGANIC TMA1 QUESTION AND ANSWER

Chm292 practical chemistry iv physical and organic

Question 1. Which indicator is suitable in the determination of vinegar?

Answer is phenolphthalein

Question 2. Vinegar is commonly used for flowering and?

Answer is preserving foods

Question 3. Aldehyde are easily oxidised to corresponding?

Answer is carboxilic acid

Question 4. Aldehyde can be prepared from primary alcohol where etone are from?

Answer is secondary alcohol

Question 5. Alcohol reacts with organic to form ester in the presence of ?

Answer is acid catalyst

Question 6. The carbonyl group on aldehyde is attached similar to alkyl and?

Answer is Hydrogen

Question 7. Due to the nature of carbon-oxygen bond, both aldehyde and ketone are?

Answer is polar solvent

Question 8. What is the appropriate heating apparatus needed for the esterification reaction?

Answer is hot plate

Question 9. The ester responsible for apple aroma?

Answer is methyl butyrate

Question 10. Vinegar is simply a dilutes solutions of?

Answer is acetic acid (CH3COOH).