1. (CH3)2C = CH - CHO
2. (CH3)2C = CHCOCH3
3. CH3 - CH = CH - CHO
4. (CH3)2 CH (OH) CH2 CO - CH3
(CH<sub>3</sub>)<sub>2</sub>C = CH - CHO
1. Bakclite
2. Terylene
3. Buna - S
4. Teflon
Buna - S
1. All amino acids have a common isoelectric point
2. All naturally occurring α - amino acids are optically active except Glycine
3. At pH = 0 all amino acids are present as their anions
4. In strongly basic solutions, all amino acids present as their cations
All naturally occurring α - amino acids are optically active except Glycine
1. Hydroxyl, Easter
2. Carboxylic acid, hydroxyl
3. Carboxylic acid, Keto
4. Carboxylic acid, Easter
Carboxylic acid, Easter
1. zero
2. 3
3. 2
4. 1
1
1. 2CH3I,Na/C2H5OH
2. electrolysis of C2H5COO-K+
3. C2H4, H2, 270C
4. C2H5I, H2, Zn - Cu, C2H5COO-K+
C<sub>2</sub>H<sub>5</sub>I, H<sub>2</sub>, Zn - Cu, C<sub>2</sub>H<sub>5</sub>COO<sup>-</sup>K<sup>+</sup>
1. 4
2. 5
3. 6
4. 3
4
1. S2O32-
2. S2O82-
3. S4O62-
4. SO2
S<sub>2</sub>O<sub>8</sub><sup>2-</sup>
1. 0.2
2. 0.6
3. 0.8
4. 0.1
0.8
1. Ethanol
2. n - propanol
3. Methanol
4. Isopropanol
Ethanol