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WorksheetsNitrogen compound
Total questions: 10
Worksheet time: 20mins
1. What are the correct set of reagents and conditions for the two reactions shown?
A
B
C
D
Which compound is an amino acid with the R group –CHO?
How many chiral centres does the molecule shown have?
2
7
8
9
Which molecule or pairs of molecules below will not undergo condensation polymerisation to form a polyester or polyamide?
4-aminohexanoic acid
4-hydroxybutylamine
2-methyl-6-hydroxyhexanoyl chloride
propane-1,3-diol and hexanedioic acid
Which monomer could form both of the polymer chains shown?
Haloalkanes react with CN– to form nitriles, for example:
electrophillic substitution
free radical substitution
nucleophilic addition
nucleophilic substitution
1. Butanone can undergo addition when mixed with NaCN(aq)/H+(aq), forming product A. Product A can then undergo hydrolysis when heated with dilute HCl, forming product B.
What is the systematic name of product B?
2-hydroxypentanoic acid
2-hydroxypentylamine
2-methyl-2-hydroxybutanoic acid
2-methyl-2-hydroxybutylamine
What is the correct two-step synthesis to produce 2-hydroxybutanenitrile from propan‑1-ol?
1) NaCl/H2SO4;
2) NaCN/ethanol
1) NaCN/ethanol;
2) NaCl/H2SO4
1) NaCN(aq)/H+(aq);
2) K2Cr2O7/H2SO4 under distillation
1) K2Cr2O7/ H2SO4 under distillation;
2) NaCN(aq)/H+(aq)
1. What are the correct reagents and conditions for the organic synthesis shown?
1) HNO3/H2SO4;
2) CH3CH3Cl/FeCl3
1) CH3CH3Cl/FeCl3;
2) NaOH/H2O
1) CH3COCl/AlCl3;
2) NaBH4
1) Cl2/AlCl3;
2) CH3CH2NH2/ethanol
1. Benzoic acid can be produced by protonating sodium benzoate:
C6H5COONa + HCl ® C6H5COOH + NaCl
The benzoic acid formed can be purified by recrystallisation.
The solubility of benzoic acid in water is shown in the table.
Which of the following statements applies/apply to the recrystallisation of benzoic acid?
1. Water is an appropriate solvent for the recrystallisation of benzoic acid.
2. The impure product should be dissolved in hot solvent.
3. The recrystallised product should be washed with warm solvent.
1, 2 and 3
only 1 and 2
only 2 and 3
only 1
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