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61.
What would be the product of controlled oxidation of aniline with K₂Cr₂O₇ + H₂SO₄ ?

when aniline oxidised in a controlled manner in the presence ofK₂Cr₂O₇ + H₂SO₄ , p Benzoquinone is formed.

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62.

Arrange the following in order of increasing basic strength.
Aniline, ethylamine, ethane, phenol.

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63.

Why cyclohexylamine is stronger base than aniline?

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64.

What happens when t-alkyl amine is oxidised with KMnO₄?

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65.

For an amine, RNH₂ write the expression for K_b to indicate its base strength.

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66. How will you prepare aniline from benzene?

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67. Write the chemical reaction of preparation of aniline from benzene ?

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68.

Write the structures of compound A.

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69.

Write the structures of compound B.
$CH subscript 3 CHO space plus space NH subscript 3 space space rightwards arrow from left parenthesis ii right parenthesis space straight H subscript 2 divided by Ni to left parenthesis straight i right parenthesis space Heat of space straight B$