MCQ
Which of the following amines forms a clear solution when treated with benzene sulphonyl chloride and excess of potassium hydroxide?
- A$\left( CH _3\right)_2 NH$
- ✓$CH _3 NH _2$
- C$\left( CH _3\right)_3 N$
- D$\left( CH _3\right)_2 NC _2 H _5$
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i. The colour of colloidal dispersion depends on size of colloidal particles.
ii. Tyndall effect is used to distinguish between colloidal dispersion and true solution.
iii. Eosin and congo red are examples of negatively charged sols.