Question

Which of the following functional groups is not found in the D) molecule shown in Figure 2? Он SH amide i) other iii) alkene iv) alkyne v) ester vi) thiol vii) i-vi are all present in the molecule R-0-2 NH Figure 2 E) Which of the following is not found in the molecule shown in Figure 3? но i) secondary alkyl halide i) primary alcohole ii primary carbon V quaternary carbon v) tertiary alkyl halide vi) tertiary alcohol vii)i-vi are all present in the molecule Br Figure 3 F) Which of the following is true about the two molecules shown in Figure 4? (a) HO ОН i) they are both hydrophobic molecule (a) is hydrophobic and molecule (b) is hydrophilic molecule (b) is hydrophobic and molecule (a) is hydrophilic v) they are both hydrophilic v) cannot be determined (b) Figure 4 Which of the following is true about the two molecules G) shown in Figure 5? но (a) i) neither of the molecules have conjugated a-systems H) only molecule (a) has a conjugated a-system i) only molecule (b) has a conjugated a-system (M) both of the molecules have conjugated x-systems v) cannot be determined (b) Figure 5

Answer 1

D) Answer is ii). This molecule don't contain ether functional group which is (O-R). But it contain double bond (Alkene), triple bond (Alkyne), ester (COOR), thiol (SH) and Amide (CONH).

E) Answer is v).

Thus molecule don't have Quaternary carbon which means a carbon which is attached to four carbons further.

F) Answer is III).

Molecule a) is hydrophilic due to the presence of OH group whereas b) is hydrophobic because it contain nonpolar side chains.

G) Answer is iv).

Both molecules have conjugated π-system as they have double bond or triple bond separated by a single bond.

W) Answer is III).

In R/S nomenclature, groups attached to chiral carbon are numbered in order of their mass. A group with high mass is numbered as 1 and with least as 4. It rotation from 1 to 3 is clockwise then it R if group numbered 4 is below the plane (dashed bond). If rotation from 1 to 3 is anticlockwise then it is S if group numbered as 4 is below the plane and R if it is above the plane.

X) Answer is III).

In both a) and b), higher priority groups are on opposite sides thus they are E).

Y) Answer is III). Because both are stereoisomers but don't have mirror image relationship thus they are diastereomers.

AA) Amide on Hydrolysis give Carboxylic acid.

A CX *Scanned with CamScanner