12 Name the functional groups in the molecule below: A) ester, ether, amine, ket

Question

12 Name the functional groups in the molecule below: A) ester, ether, amine, keto B) carboxyl, ether, amine, keto C) ester, ether, amine, aldehyde D) ester, ether, amide, aldehyde E) ester, carboxyl, amine, keto What are the possible positions for hydrogen on the chair conformation of cyclohexane? 13 A) staggered and eclipsed B) axial and equatorial C) equatorial and apical D) longitudinal and latitu dinal E) chair and boat 14. Which of the following chiral compounds is(are) S enantiomer(s)? H,c OH ?? HyC HyCH2C B) II C) III D) I and I E) I and III 15 A) CH-????????? B) CH3C CCH2CH3 C) CH3CH CHCH2CH3 D) CH3C CCH3 E) CH3CH CCH2CH2CH3 What is the condensed structural formula for 2-pentyne?

Explanation / Answer

12) option C is correct

Explanation: -COOR functional group is called ester, R-O-R functional group is called ether, -CHO functional group is called aldehyde, -NH functional grop is called amine

13) option B is correct

Explanation: chair conformation contains axial and equatorial hydrogens.

14) option A is S-enantiomer.

15) optin B is correct

Explanation: The rootword is pent- so the number of carbon atoms in the longest cabon chain must be 5. A triple bond is located at 2nd position.

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