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Reactions of Aryl Amines (Diazo Salts)

Be dry air / ...

Question

$B e d r y a i r / Δ ⟶ A + B$
$B H_{2} O ⟶ C + D$
$D H C l ⟶ E Δ ⟶ D + H C l$
Select the correct statement(s) from the following:

A

and

B

are

B e_{3} N_{2}

and

B e O

respectively

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Compound

E

when treated with an alkaline solution of

K_{2} H g I_{4}

gives brown precipitate

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Compound

D

N H_{3}

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Compound

E

upon reacting with

N a O H

gives compound

D

as one of the products

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Solution

The correct options are
B Compound $E$ when treated with an alkaline solution of $K_{2} H g I_{4}$ gives brown precipitate
C Compound $D$ is $N H_{3}$
D Compound $E$ upon reacting with $N a O H$ gives compound $D$ as one of the products
$B e d r y a i r / Δ ⟶ B e O + B e_{3} N_{2}$
$B e_{3} N_{2} H_{2} O ⟶ B e (O H)_{2} + N H_{3}$
$N H_{3} H C l ⟶ N H_{4} C l Δ ⟶ N H_{3} + H C l$

(a) $A$ and $B$ are $B e O$ and $B e_{3} N_{2}$ respectively
(b) It is Nessler's reagent ( $K_{2} H g I_{4}$ ) and is used as a test for ammonium ion detection:
$N H_{4}^{+} + 2 [H g I_{4}]^{2 -} + 4 O H^{-} ⟶ H g O . H g (N H_{2}) . I B r o w n p p t + 7 I^{-} + 3 H_{2} O$
(c) Compound $D$ is $N H_{3}$
(d) $N H_{4} C l + N a O H ⟶ N H_{3} + H_{2} O + N a C l$

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Similar questions

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Bedry air/Δ⟶A+B BH2O⟶C+D DHCl⟶EΔ⟶D+HCl Select the correct statement(s) from the following:

$B e d r y a i r / Δ ⟶ A + B$
$B H_{2} O ⟶ C + D$
$D H C l ⟶ E Δ ⟶ D + H C l$
Select the correct statement(s) from the following: