17. The amino acid glycine has the structural formula of HO2C-CH2-NH2. It has a relative molecular mass of:
1. 75
2. 77
3. 80
4. 79
5. 72
18. Ethanolamine which has the formula HO-CH2-CH2-NH2, has a relative molecular mass of:
1. 59
2. 61
3. 63
4. 65
5. 67
19. The relative molecular mass of the compound CH3.CO.CH3 is:
1. 56
2. 58
3. 60
4. 62
5. 64
20. The relative molecular mass of the compound CH3.CHOH.CH3 is:
1. 56
2. 58
3. 60
4. 62
5. 64
21. Succinic acid has the formula CO2H.CH2.CH2.CO2H. Its relative molecular mass is:
1. 118
2. 120
3. 122
4. 124
5. 126
22. Fumaric acid has the formula CO2H.CH = CH.CO2H. Its relative molecular mass is:
1. 112
2. 114
3. 116
4. 118
5. 120
23. Butan-2-ol is:
1. CH3.CH2.CHOH.CH3
2. CH3.CH=CH.CHOH
3. CH3.CH2.CH2.CH2OH
4. CH2=CH.CHOH.CH3
5. CH3.CH=CH.CH2OH
24. Propan-2-ol is:
1. CH3.CHOH.CH3
2. CH=CH.CHOH
3. CH2.CH2.CH2OH
4. CH2=CH.CHOH
5. CH=CH.CH2OH
25. Butan-dioic acid is:
1. CH3.CH2
CH2.COOH
2. COOH.CH=CH.COOH
3. COOH.CH2 CH2.COOH
4. CH3.CH(COOH).COOH
5. COOH.CH2.CH2.CO.O.CO.
CH2 CH2.COOH
26. 2-hydroxypropanoic acid is:
1. CH2=CH.COOH
2. CH3.CO.COOH
3. CH3.CHOH.COOH
4. CHOH.CH2.COOH
5. CHO CH2.COOH
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