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41.

Arrange the following in decreasing order of their basic strength.
C₆H₅NH₂, C₂H₅NH₂, (C₂H₅)₂NH, CH₃NH₂, C₆H₅CH₂NH₂, NH₃

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42.

Why are amines basic in nature?

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43. Why are aromatic amines weaker bases than aliphatic amines?

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44.

Why are amines soluble in dilute mineral acids?

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45. Why sulphanilic acid has high melting point?

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46.

What happens when silver chloride is treated with aqueous ethylamine?

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47.

What is diazotization?

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48.

Write chemical reaction for the preparation of sulphanillic acid from aniline.

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49.

How acetanilide obtained from aniline?

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50.

How is aniline obtained from nitrobenzene? Write only the chemical equation .

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