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Standard XII

Chemistry

Synthesis by Reduction of Nitriles

In order to p...

Question

In order to prepare a 1 amine from an alkyl halide with simultaneous addition of one $C H_{2}$ group in the carbon chain, the reagent used as source of nitrogen is:

Sodium amide

N a N H_{2}

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Sodium azide

N a N_{3}

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Potassium cyanide

K C N

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Potassium phthalimide

C_{6} H_{4} (C O)_{2} N^{-} K^{+}

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Solution

The correct option is D Potassium cyanide $K C N$
$4 R - X K C N - -- \to R - C N N a / C_{2} H_{5} O H - ------- \to R - C H_{2} N H_{2}$

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Similar questions

Pthalamide on treatment with ethanolic potassium hydroxide forms potassium salt of phthalimide which on heating with alkyl halide followed by alkaline hydrolysis produces the corresponding amine. This reaction is known as:

Q. Assertion :Gabriel phthalimide rection can be used to prepare aryl amines Reason: Aryl halides have same reactivity as alkyl halids towards nucleophilic substitution reactions.

Q. Sodium azide

(N a N_{3})

is an explosive chemical used in automobile airbags. It is made by the following reaction:

N a N O_{3} + 3 N a N H_{2} \to N a N_{3} + 3 N a O H + N H_{3}

One takes 17.0 g of

N a N O_{3}

and 13.0 g of

N a N H_{2}

. If this amount is used in automobile bags, how much

N_{2}

is formed due to collision at STP?

Q. Gabriel phthalimide synthesis is used in the preparation of primary amine from phthalimide which of the following reagent is not used during the process?

Q. Sodium azide

(N a N_{3})

is an explosive chemical used in automobile airbags. It is made by the following reaction:

N a N O_{3} + 3 N a N H_{2} \to N a N_{3} + 3 N a O H + N H_{3}

One takes 17.0 g of

N a N O_{3}

and 13.0 g of

N a N H_{2}

. If this amount is used in automobile bags, how much

N_{2}

is formed due to collision at STP?

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In order to prepare a 1 amine from an alkyl halide with simultaneous addition of one CH2 group in the carbon chain, the reagent used as source of nitrogen is:

The correct option is D Potassium cyanide KCN4R−XKCN−−−→R−CNNa /C2H5OH−−−−−−−−→R−CH2NH2

In order to prepare a 1 amine from an alkyl halide with simultaneous addition of one $C H_{2}$ group in the carbon chain, the reagent used as source of nitrogen is:

The correct option is D Potassium cyanide $K C N$
$4 R - X K C N - -- \to R - C N N a / C_{2} H_{5} O H - ------- \to R - C H_{2} N H_{2}$