Which among the following are the correct statements?
Statement 1: Methyl-amine in water reacts with ferric chloride to precipitate hydrated ferric oxide.
Statement 2: Methylamine is more basic than ammonia.

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Solution

Due to the +I effect of −CH₃ group, methylamine is more basic than ammonia. Therefore, in water, methylamine produces OH− ions by accepting H+ ions from water. Ferric chloride $F e C l_{3}$ dissociates in water to form $F e^{3 +}$ and $C l^{-}$ ions. Then, $O H^{-}$ ion reacts with $F e^{3 +}$ ion to form a precipitate of hydrated ferric oxide.
Thus, both the statements are correct.

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Q. Methylamine in water reacts with ferric chloride to precipitate hydrated ferric oxide.

Q. Account for the following:
(i)

p K_{b}

of aniline is more than that of methylamine.
(ii) Ethylamine is soluble in water whereas aniline is not.
(iii) Methylamine in water reacts with ferric chloride to precipitate hydrated ferric oxide.

Account for the following:

(i) pK_bof aniline is more than that of methylamine.

(ii) Ethylamine is soluble in water whereas aniline is not.

(iii) Methylamine in water reacts with ferric chloride to precipitate hydrated ferric oxide.

(iv) Although amino group is o, p− directing in aromatic electrophilic substitution reactions, aniline on nitration gives a substantial amount of m-nitroaniline.

(v) Aniline does not undergo Friedel-Crafts reaction.

(vi) Diazonium salts of aromatic amines are more stable than those of aliphatic amines.

(vii) Gabriel phthalimide synthesis is preferred for synthesising primary amines.

Account for the following

(i) $p K_{b}$ of aniline is more than that of methyl amine.

(ii) Ethylamine is soluble in water whereas aniline is not

(iii) Methyl amine in water reacts with ferric chloride to precipitate hydrated ferric oxide

(iv) Although amino group is o- and p- directing in aromatic electrophilic substitution, aniline on nitration gives a substantial amount of m-nitroaniline

(v) Aniline does not undergo Friedel Crafts reaction

(vi) Diazonium salts of aromatic amines are more stable than those of aliphatic amines

(vii) Gabriel phthalimide synthesis is preferred for synthesising primary amines

Q. Which precipitate is formed when ferric chloride reacts with caustic soda?

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Which among the following are the correct statements?Statement 1: Methyl-amine in water reacts with ferric chloride to precipitate hydrated ferric oxide.Statement 2: Methylamine is more basic than ammonia.

Which among the following are the correct statements?
Statement 1: Methyl-amine in water reacts with ferric chloride to precipitate hydrated ferric oxide.
Statement 2: Methylamine is more basic than ammonia.