Which one of the following organic compounds has fruity smell?
A). Alcohol
B). Aldehyde
C). Ester
D). Ether
Ester
Esters are common in organic chemistry and biological materials, and often have a characteristic pleasant, fruity odour. This leads to their extensive use in the fragrance and flavor industry. Ester bonds are also found in many polymers. Esterification is the general name for a chemical reaction in which two reactants (typically an alcohol and an acid) form an ester as the reaction product. Esters are widespread in nature and are widely used in industry. In nature, fats are, in general, tri-esters derived from glycerol and fatty acids. Esters are responsible for the aroma of many fruits, including apples, durians, pears, bananas, pineapples, and strawberries.
1. Type metal used in printing press is an alloy of
2. Which of the following is not present in German silver
3. Poison used for killing rats is
4. Highest percentage of carbon is found in which form of coal?
5. The isomerism which exists between CH3CHCI2 and CH2CI. CH2CI is
7. Mark the compound which possess ionic, covalent and coordinate bonds.
8. The chemical(s) most commonly used for cloud seeding or artificial rainmaking is are
9. In the following reaction, fill in the blank. Acid + Base ? _______ + Water
10. The metal does not give H2 on treatment with dilute HCL is