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Amines

Solution for Class 12, Chemistry, Amines

Question 1

Q.3. How will you convert : (i) Benzene into aniline, (ii) Benzene into

N, N

-dimethylaniline, (iii)

Cl - (CH_{2})_{4} - Cl

into hexane-1, 6-diamine ?

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Question 2

6. Hoffmann bromamide degradation reaction (Hoffmann developed a method for preparation of primary amines by treating an amide with bromine in an aqueous or ethanolic solution of sodium hydroxide.) In this degradation reaction, migration of an alkyl or aryl group takes.place from carbonyl carbon of the amide to the nitrogen atom. The amine so formed contains one carbon less than that present in the amide.

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Question 3

Q.4. Give the answer in one word/sentence:

Write Bragg's equation.
Which noble gas forms maximum compounds ?
Name the mixture of $Cu_{2} S$ and $FeS$ obtained from blast furnace.
Write the reason due to which colloidal particles show Tyndal effec
Write formula of monomer of PVC
Give one example of antibiotic.

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Question 4

Which of the following can be represented by molecular formula

C_{3} H_{9} N

Primary amine
Secondary amine
Tertiary amine
All of these

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Question 5

Q Ammonolysis of Benzyl CHloride \& Amine Rxusoformed wite 2 -males of

CH_{3} - Cl

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Question 6

13.10 An aromatic compound '

A

' on treatment with aqueous ammonia and heating forms compound '

B

' which on heating with

Br_{2}

and

KOH

forms a compound '

C

' of molecular formula

C_{6} H_{7} N

. Write the structures and IUPAC rames of compounds

A, B

and

C

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Question 7

Product

A

in the following reaction is

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Question 8

Product

A

in the following reaction is

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Question 9

Number of carbon atoms present in isoprene unit is

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Question 10

Ib.4 Arrange the following: (i) In decreasing order of the

pK_{b}

values:

C_{2} H_{5} NH_{2}, C_{6} H_{5} NHCH_{3}, (C_{2} H_{5})_{2} NH

and

C_{6} H_{5} NH_{2}

(ii) In increasing order of basic strength:

CH_{3} NH_{2}

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Question 11

f_{O_{2} m_{2}} Tyg_{2} gen

that oxides and react with chementerestidi

ICh as

L_{i g O}

Cl_{2} R_{2} O

, so the elements L_{2}, \mathrm{~N}, \textrm Pame general formula example, the elements the same general formula, then they ides such as LiH, NaH and they have simili, Na, and K form the hydrides LiH, war

endelie

eriodic law elements are a periodic function of their atomic masserion. elements are repeated in the order of increasing. periods at eight groups, first seven eight groups (vertical columns) in the original perial

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Question 12

MCQ Single Correct Answer A compound with molecular mass 180 is acylated with

CH_{3} COCl

to get a compound with molecular mass 390 . The number of amino groups present per molecule of the former compound is:

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Question 13

15.

The major product (B) is

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Question 14

15.

The major product (B) is

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Question 15

Ammin in hindi Truation on Ammin Repeated question of Ammin important for UK NCert Board Notes

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Question 16

2. The Crystal Field Stabilization Energy (CFSE) and magnetic moment (spinonly) of an octahedral aqua complex of a metal ion

(M^{2 +})

are

- 0.8 Δ_{0}

and

3.87

BM, respectively. Identify

(M^{2 +})

(A) $V^{3 +} 3$
(B) $Cr^{5}$
(C) $M n^{4 +} :$
(B) $Co^{2 +}$

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Question 17

Question No. 34 The major product of the following reaction is (iii)

H_{2} SO

(conc)

a

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Question 18

The correct order of

- 1

effect of following substituents is

$CH_{3} CHCl -$
$Cl CH_{2} CH_{2} -$ ::::

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Question 19

The number of isomeric amines represented by

C_{3} H_{9} N

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Question 20

9. a. Write the IUPAC name for the following organic compound: b. Complete the following:

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Solution for Class 12, Chemistry, Amines

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