7/25/2019 MSC. - Chemistry - 2013

1/179

Time : 2

P2196

SEAT No. :

7/25/2019 MSC. - Chemistry - 2013

2/179

,G H S

7/25/2019 MSC. - Chemistry - 2013

3/179

7/25/2019 MSC. - Chemistry - 2013

4/179

P2197

SEAT No. :

2S nn

1v

7/25/2019 MSC. - Chemistry - 2013

5/179

xy 2 zC

1

22C 22C h 2 v 2 d

7/25/2019 MSC. - Chemistry - 2013

6/179

2 v 2 d

7/25/2019 MSC. - Chemistry - 2013

7/179

pKa

7/25/2019 MSC. - Chemistry - 2013

8/179

7/25/2019 MSC. - Chemistry - 2013

9/179

7/25/2019 MSC. - Chemistry - 2013

10/179

7/25/2019 MSC. - Chemistry - 2013

11/179

7/25/2019 MSC. - Chemistry - 2013

12/179

7/25/2019 MSC. - Chemistry - 2013

13/179

7/25/2019 MSC. - Chemistry - 2013

14/179

1

2

E E 2 1

E

n n

n

n

n

+ +

=

n

S and G

mix mix

7/25/2019 MSC. - Chemistry - 2013

15/179

+ 2

2 2 2 4 3NH CONH +2H O 2NH +CO

7/25/2019 MSC. - Chemistry - 2013

16/179

P2156

SEAT No. :

( )2 z xy

vC i i

7/25/2019 MSC. - Chemistry - 2013

17/179

[ ]24 NiCl

[ ]24: Ni CN

22C 22C

7/25/2019 MSC. - Chemistry - 2013

18/179

7/25/2019 MSC. - Chemistry - 2013

19/179

P2157

SEAT No. :

7/25/2019 MSC. - Chemistry - 2013

20/179

7/25/2019 MSC. - Chemistry - 2013

21/179

7/25/2019 MSC. - Chemistry - 2013

22/179

7/25/2019 MSC. - Chemistry - 2013

23/179

7/25/2019 MSC. - Chemistry - 2013

24/179

7/25/2019 MSC. - Chemistry - 2013

25/179

Time : 3

P2200

SEAT No. :

7/25/2019 MSC. - Chemistry - 2013

26/179

7/25/2019 MSC. - Chemistry - 2013

27/179

eW

7/25/2019 MSC. - Chemistry - 2013

28/179

7/25/2019 MSC. - Chemistry - 2013

29/179

P2201

SEAT No. :

7/25/2019 MSC. - Chemistry - 2013

30/179

[ ]2 31

2 5B3

+

2 1

7/25/2019 MSC. - Chemistry - 2013

31/179

7/25/2019 MSC. - Chemistry - 2013

32/179

7/25/2019 MSC. - Chemistry - 2013

33/179

7/25/2019 MSC. - Chemistry - 2013

34/179

P2202

SEAT No. :

7/25/2019 MSC. - Chemistry - 2013

35/179

7/25/2019 MSC. - Chemistry - 2013

36/179

7/25/2019 MSC. - Chemistry - 2013

37/179

7/25/2019 MSC. - Chemistry - 2013

38/179

max

7/25/2019 MSC. - Chemistry - 2013

39/179

P2203

SEAT No. :

7/25/2019 MSC. - Chemistry - 2013

40/179

7/25/2019 MSC. - Chemistry - 2013

41/179

P2203

7/25/2019 MSC. - Chemistry - 2013

42/179

7/25/2019 MSC. - Chemistry - 2013

43/179

P2203

7/25/2019 MSC. - Chemistry - 2013

44/179

7/25/2019 MSC. - Chemistry - 2013

45/179

P2203

7/25/2019 MSC. - Chemistry - 2013

46/179

7/25/2019 MSC. - Chemistry - 2013

47/179

P2203

7/25/2019 MSC. - Chemistry - 2013

48/179

7/25/2019 MSC. - Chemistry - 2013

49/179

P2203

8 8 3

2 5 6

1 2 6 3

9 7 1 1

?dydx

=

3

2

4 7

5 2

x x y

x = +

7/25/2019 MSC. - Chemistry - 2013

50/179

1 1 2

3 1 2

3 2 1

100

1

RT ?v

v

dvv

=

==

3 2( 3 2)?

x x dx

x

+ + =

7 7 3

2 1 2

63 6 2

2 A ?4 2 3

1

x x = =

38 9 4

2 B ?2 6 8

3

y y = =

7/25/2019 MSC. - Chemistry - 2013

51/179

P2203

7/25/2019 MSC. - Chemistry - 2013

52/179

7/25/2019 MSC. - Chemistry - 2013

53/179

P2159

SEAT No. :

7/25/2019 MSC. - Chemistry - 2013

54/179

7/25/2019 MSC. - Chemistry - 2013

55/179

7/25/2019 MSC. - Chemistry - 2013

56/179

P2160

SEAT No. :

3 2

1 2

7/25/2019 MSC. - Chemistry - 2013

57/179

7/25/2019 MSC. - Chemistry - 2013

58/179

7/25/2019 MSC. - Chemistry - 2013

59/179

7/25/2019 MSC. - Chemistry - 2013

60/179

7/25/2019 MSC. - Chemistry - 2013

61/179

P2161

SEAT No. :

7/25/2019 MSC. - Chemistry - 2013

62/179

7/25/2019 MSC. - Chemistry - 2013

63/179

7/25/2019 MSC. - Chemistry - 2013

64/179

3 2 2 3CH -CO-CH - C O-CH -CH

7/25/2019 MSC. - Chemistry - 2013

65/179

7/25/2019 MSC. - Chemistry - 2013

66/179

7/25/2019 MSC. - Chemistry - 2013

67/179

7/25/2019 MSC. - Chemistry - 2013

68/179

7/25/2019 MSC. - Chemistry - 2013

69/179

7/25/2019 MSC. - Chemistry - 2013

70/179

7/25/2019 MSC. - Chemistry - 2013

71/179

7/25/2019 MSC. - Chemistry - 2013

72/179

32 NH4 2P+Cl No a b

23 No

3 23Pt Cl NH No e f

7/25/2019 MSC. - Chemistry - 2013

73/179

6 1

1 3

5 2

7 1

3

, ?6

x dy y

dx

7/25/2019 MSC. - Chemistry - 2013

74/179

34 32 7 10 5, ? x

dy y x x e

dx

1?

1

xdx

x

3 42 5 ? x x dx

45 6 2

A = B= 23 4 1

6

59 8 2

X = Y = 64 5 43

7/25/2019 MSC. - Chemistry - 2013

75/179

7/25/2019 MSC. - Chemistry - 2013

76/179

7/25/2019 MSC. - Chemistry - 2013

77/179

P2162

SEAT No. :

7/25/2019 MSC. - Chemistry - 2013

78/179

2

2

d dx

A

A A A

z L , L L x yi =

L x L y L z

7/25/2019 MSC. - Chemistry - 2013

79/179

co

E +EE = 2

oA

7/25/2019 MSC. - Chemistry - 2013

80/179

P2163

SEAT No. :

7/25/2019 MSC. - Chemistry - 2013

81/179

3+Fe

G

7/25/2019 MSC. - Chemistry - 2013

82/179

o

A

7/25/2019 MSC. - Chemistry - 2013

83/179

P2164

SEAT No. :

e

n

7/25/2019 MSC. - Chemistry - 2013

84/179

7/25/2019 MSC. - Chemistry - 2013

85/179

7/25/2019 MSC. - Chemistry - 2013

86/179

Time : 3

P2165

SEAT No. :

7/25/2019 MSC. - Chemistry - 2013

87/179

,S H G

n wX , X nX

7/25/2019 MSC. - Chemistry - 2013

88/179

Mn = 28000

7/25/2019 MSC. - Chemistry - 2013

89/179

Time : 3

P2166

SEAT No. :

7/25/2019 MSC. - Chemistry - 2013

90/179

7/25/2019 MSC. - Chemistry - 2013

91/179

7/25/2019 MSC. - Chemistry - 2013

92/179

7/25/2019 MSC. - Chemistry - 2013

93/179

7/25/2019 MSC. - Chemistry - 2013

94/179

Time : 3

P2168

SEAT No. :

3 2 4

32 4

NH C H2y

NHC H2y

[pt cl ] ? ?[pt cl ] ? ?

2 32 n 2 n 2 n[Mg (H O) ] , [Al (H O) ] , [Na (H O) ]

+ + +

7/25/2019 MSC. - Chemistry - 2013

95/179

7/25/2019 MSC. - Chemistry - 2013

96/179

7/25/2019 MSC. - Chemistry - 2013

97/179

P2169

SEAT No. :

1

E = H + A4

g

Mossbauer

Mossbauer

7/25/2019 MSC. - Chemistry - 2013

98/179

13I ; I 22g e= =

7 5I ; I2 2g e= =

Mossbauer

Q

Mossbauer

7/25/2019 MSC. - Chemistry - 2013

99/179

P2170

SEAT No. :

7/25/2019 MSC. - Chemistry - 2013

100/179

7/25/2019 MSC. - Chemistry - 2013

101/179

P2171

SEAT No. :

7/25/2019 MSC. - Chemistry - 2013

102/179

7/25/2019 MSC. - Chemistry - 2013

103/179

7/25/2019 MSC. - Chemistry - 2013

104/179

Time : 3

P2172

SEAT No. :

7/25/2019 MSC. - Chemistry - 2013

105/179

7/25/2019 MSC. - Chemistry - 2013

106/179

7/25/2019 MSC. - Chemistry - 2013

107/179

7/25/2019 MSC. - Chemistry - 2013

108/179

7/25/2019 MSC. - Chemistry - 2013

109/179

7/25/2019 MSC. - Chemistry - 2013

110/179

P2173

SEAT No. :

7/25/2019 MSC. - Chemistry - 2013

111/179

7/25/2019 MSC. - Chemistry - 2013

112/179

7/25/2019 MSC. - Chemistry - 2013

113/179

7/25/2019 MSC. - Chemistry - 2013

114/179

Total No. of Questions : 6]

[4823]-313M.Sc. - II

ORGANIC CHEMISTRYCHO - 353 : Photochemistry, Pericyclic Reactions and Heterocyclic

Chemistry(2013 Pattern) (Semester - III)

Time : 3 Hours] [Max. Marks : 50 Instructions to the candidates:

1) All questions are compulsory.

2) Figures to the right indicate full marks.3) Answers to the two sections should be written in separate answer books.

P2174 [Total No. of Pages : 3

SEAT No. :

SECTION - I

Q1) Explain any three of the following: [9]

a) Gas phase irradiation of cyclopentanone gives three products.

b) Molecular orbitals of heptatrienyl system and comment on their symmetry

and C 2 axis of symmetry.c) 1, 3 - diphenylpropene on photoirradiation forms 1, 2 - diphenyl

cyclopropane.

d) With the help of FMO predict whether (2+2) cycloaddition reaction of two ethylenes will be photochemically allowed or not.

Q2) Predict the product/s suggesting suitable mechanism for any two: [8]

a)

b)

c)

P.T.O.

7/25/2019 MSC. - Chemistry - 2013

115/179

Q3) Write Notes on any two: [8]

a) Jablonski diagram.

b) Photochemical synthesis of Isocomene.

c) Nazarov cyclisation.

SECTION - II

Q4) Explain any three of the following: [9]

a) Pyrrole-2- carbaldehyde does not respond to Tollens reagent.

b) The electrophilic attack on Pyrazole is hindered in acidic medium.

c) Acrotein itself is not used in the skraup synthesis of quinoline.

d) Pyrimidine is weak base (pKa = 1.3) as compared to pyridine (pKa =5.2) and imdidazole (pKa = 7.2).

Q5) Predict the product/s suggesting suitable mechanism for any two: [8]

[4823]-313 2

a)

b)

c)

7/25/2019 MSC. - Chemistry - 2013

116/179

[4823]-313 3

Q6) a) Complete the following sequence of reactions for any two: [4]

b) Write notes on any two: [4]i) The Gabriel synthesis.

ii) The First-Benary synthesis.

iii) The Friadlander synthesis.

i)

ii)

iii)

7/25/2019 MSC. - Chemistry - 2013

117/179

Time : 3

P2175

SEAT No. :

7/25/2019 MSC. - Chemistry - 2013

118/179

7/25/2019 MSC. - Chemistry - 2013

119/179

7/25/2019 MSC. - Chemistry - 2013

120/179

P2176

SEAT No. :

7/25/2019 MSC. - Chemistry - 2013

121/179

7/25/2019 MSC. - Chemistry - 2013

122/179

P2177

SEAT No. :

7/25/2019 MSC. - Chemistry - 2013

123/179

7/25/2019 MSC. - Chemistry - 2013

124/179

7/25/2019 MSC. - Chemistry - 2013

125/179

P2178

SEAT No. :

7/25/2019 MSC. - Chemistry - 2013

126/179

7/25/2019 MSC. - Chemistry - 2013

127/179

7/25/2019 MSC. - Chemistry - 2013

128/179

P2179

SEAT No. :

7/25/2019 MSC. - Chemistry - 2013

129/179

7/25/2019 MSC. - Chemistry - 2013

130/179

7/25/2019 MSC. - Chemistry - 2013

131/179

7/25/2019 MSC. - Chemistry - 2013

132/179

P2180

SEAT No. :

e

n

7/25/2019 MSC. - Chemistry - 2013

133/179

7/25/2019 MSC. - Chemistry - 2013

134/179

2 2Fe Fe e+ +

1

2 =

0

ii

7/25/2019 MSC. - Chemistry - 2013

135/179

P2181

SEAT No. :

7/25/2019 MSC. - Chemistry - 2013

136/179

7/25/2019 MSC. - Chemistry - 2013

137/179

7/25/2019 MSC. - Chemistry - 2013

138/179

P2182

SEAT No. :

7/25/2019 MSC. - Chemistry - 2013

139/179

7/25/2019 MSC. - Chemistry - 2013

140/179

nM wM

7/25/2019 MSC. - Chemistry - 2013

141/179

P2183

SEAT No. :

7/25/2019 MSC. - Chemistry - 2013

142/179

7/25/2019 MSC. - Chemistry - 2013

143/179

7/25/2019 MSC. - Chemistry - 2013

144/179

P2184

SEAT No. :

7/25/2019 MSC. - Chemistry - 2013

145/179

7/25/2019 MSC. - Chemistry - 2013

146/179

P2185

SEAT No. :

dc

J Ddx =

7/25/2019 MSC. - Chemistry - 2013

147/179

7/25/2019 MSC. - Chemistry - 2013

148/179

P2186

SEAT No. :

7/25/2019 MSC. - Chemistry - 2013

149/179

7/25/2019 MSC. - Chemistry - 2013

150/179

P2187

SEAT No. :

7/25/2019 MSC. - Chemistry - 2013

151/179

7/25/2019 MSC. - Chemistry - 2013

152/179

7/25/2019 MSC. - Chemistry - 2013

153/179

P2188

SEAT No. :

7/25/2019 MSC. - Chemistry - 2013

154/179

7/25/2019 MSC. - Chemistry - 2013

155/179

7/25/2019 MSC. - Chemistry - 2013

156/179

7/25/2019 MSC. - Chemistry - 2013

157/179

P2189

SEAT No. :

7/25/2019 MSC. - Chemistry - 2013

158/179

7/25/2019 MSC. - Chemistry - 2013

159/179

7/25/2019 MSC. - Chemistry - 2013

160/179

7/25/2019 MSC. - Chemistry - 2013

161/179

P2190

SEAT No. :

7/25/2019 MSC. - Chemistry - 2013

162/179

+2

i) HCNii) H O/H A

2

4

i ) H O / ii) NaBH B

+

4

i) Acetone/ Hii) Pb(OAC) A 4

i) NaBHii) TSCl/Pyridimeiii) H

B

7/25/2019 MSC. - Chemistry - 2013

163/179

7/25/2019 MSC. - Chemistry - 2013

164/179

P2191

SEAT No. :

RCO

7/25/2019 MSC. - Chemistry - 2013

165/179

7/25/2019 MSC. - Chemistry - 2013

166/179

7/25/2019 MSC. - Chemistry - 2013

167/179

7/25/2019 MSC. - Chemistry - 2013

168/179

P2192

SEAT No. :

7/25/2019 MSC. - Chemistry - 2013

169/179

7/25/2019 MSC. - Chemistry - 2013

170/179

7/25/2019 MSC. - Chemistry - 2013

171/179

P2193

SEAT No. :

7/25/2019 MSC. - Chemistry - 2013

172/179

7/25/2019 MSC. - Chemistry - 2013

173/179

1 2

7/25/2019 MSC. - Chemistry - 2013

174/179

P2194

SEAT No. :

7/25/2019 MSC. - Chemistry - 2013

175/179

7/25/2019 MSC. - Chemistry - 2013

176/179

nM

7/25/2019 MSC. - Chemistry - 2013

177/179

P2195

SEAT No. :

7/25/2019 MSC. - Chemistry - 2013

178/179

7/25/2019 MSC. - Chemistry - 2013

179/179