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2008 AIEEE PAPER - (Chemistry)

1 )	6.56 X 10⁵ J mol^-1

2 )	7.56 X 10⁵ J mol^-1

3 )	9.84 X 10⁵ J mol^-1

4 )	8.51 X 10⁵ J mol^-1

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1 )	CN^- and CN⁺

2 )	O₂^- and CN^-

3 )	NO⁺ and CN⁺

4 )	CN^- and NO⁺

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1 )	NO⁺, C₂^2- , CN^-, N₂

2 )	CN^-, N₂ , O₂^2-, C₂^2-

3 )	N₂ , O₂^- , NO⁺ , CO

4 )	C₂^2- , O₂^- , CO , NO

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1 )	ii < iii < i < iv

2 )	i < iii < ii< iv

3 )	iii < i < iv < ii

4 )	iv < ii < iii < i

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1 )

4.79

2 )

7.01

3 )

9.22

4 )

9.58

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1 )	-SO₃H , -COOH , -CONH₂ , -CHO

2 )	-CHO , -COOH , -SO₃H , -CONH₂

3 )	-CONH₂ , -CHO , -SO₃H , -COOH

4 )	-COOH, -SO₃H, -CONH₂, -CHO

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1 )	CH₃C ≡ C - CH₃

2 )

3 )

CH₄

4 )	CH₃ - CH = CH₂

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1 )	CH₃CH₂C ≡ CH

2 )	CH₃CH = CHCH₃

3 )	CH₃CH₂C ≡ CCH₂CH₃

4 )	CH₃CH₂CH₂C ≡ CCH₂CH₂CH₃

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1 )	15.750 mm Hg

2 )	16.500 mm Hg

3 )	17.325 mm Hg

4 )	17.675 mm Hg

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1 )	C < B < D < A

2 )	A < C < B < D

3 )	B < D < A < C

4 )	D < A < C < B

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1 )

X₂Y₃

2 )

X₂Y

3 )

X₃Y₄

4 )

X₄Y₃

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1 )	CO is removed by absorption in aqueous Cu₂Cl₂ Solution

2 )	H₂ is removed through occlusion with Pd

3 )	CO is oxidized to CO₂ with steam in the presence of a catalyst followed by absorption of CO₂ in alkali

4 )	CO and H₂ are fractionally separated using differences in their densities

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1 )

RSiCl₃

2 )

R₂SiCl₂

3 )

R₃SiCl₂

4 )

R₄Si

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1 )	furnishes H⁺ ions in addition to those from oxalic acid

2 )	reduces permanganate to Mn²⁺

3 )	oxidises oxalic acid to carbon dioxide and water

4 )	gets oxidised by oxalic acid to chlorine

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1 )

0.339 V

2 )

- 0.339 V

3 )

- 0.26

4 )

0.26 V

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1 )	Beryllium exhibits coordination number of six

2 )	Chlorides of both beryllium and aluminium have bridged chloride structures in solid phase

3 )	B₄H₆.2NH₃ is known as 'inorganic benzene'

4 )	Boric acid is a protonic acid

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1 )	Greenhouse effect is responsible for global warming

2 )	Ozone layer does not permit infrared ratiation from the sun to reach the earth

3 )	Acid rain is mostly because of oxides of nitrogen and sulphur

4 )	Chlorofluorocarbons are responsible for ozone layer depliction

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1 )

4 and 2

2 )

4 and 3

3 )

6 and 3

4 )

6 and 2

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1 )	[ Co(C₂O₄)₃ ]^3-

2 )	[ Co(H₂O )₆ ]³⁺

3 )	[ Co(NH₃ )₆ ]³⁺

4 )	[ Co(CN)₆ ]^3-

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1 )	lesser energy difference between 5f and 6d than between 4f and 5d orbitals

2 )	more energy difference between 5f and 6d than between 4f and 5d orbitals

3 )	more reactive nature of the actinoids than the lanthanoids

4 )	4f orbitals more diffused than the 5f orbitals

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1 )	CO₂ is thermodynamically more stable than CS₂

2 )	Metal sulphides are less stable than the corresponding oxides

3 )	CO₂ is more volatile than CS₂

4 )	Metal sulphides are thermodynamically more stable than CS₂

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1 )	- 610 kJ mole^-1

2 )	- 850 kJ mole^-1

3 )	+ 120 kJ mole^-1

4 )	+ 152 kJ mole^-1

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1 )

CH₃COCH₃

2 )	CH₃CH₂COCH₃

3 )

CH₃CHO

4 )

CH₃CH₂CHO

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1 )	o-nitrophenol

2 )	p-nitrophenol

3 )	nitrobenzene

4 )	2,4,6-trinitrobenzene

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1 )	mixture of o- and p-dibromobenzenes

2 )	mixture of o- and p-bromoanilines

3 )	mixture of o- and m-bromotoluenes

4 )	mixture of o- and p-bromotoluenes

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1 )

(CH₃)₃CCl

2 )	(CH₃)₂CHCl

3 )

CH₃Cl

4 )	(C₂H₅)₂CHCl

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1 )

R, R

2 )

R, S

3 )

S, R

4 )

S, S

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1 )

epimers

2 )

anomers

3 )	enantiomers

4 )	conformers

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1 )

2 )

3 )

4 )

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1 )

500 K

2 )

750 K

3 )

1000 K

4 )

1250 K

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1 )	K₂ K₃ = K₁

2 )	K₃ = K₁ K₂

3 )	K₃ K₂³ = K₁²

4 )

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1 )

CH₃CHO

2 )

CH₃COCH₃

3 )

HCHO

4 )

(CH₂OH)₂

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1 )

1 : 1

2 )

1 : 3

3 )

1 : 9

4 )

1 : 36

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1 )

-	d[A]	=	1		d[B]
	dt		4		dt

2 )

-	d[A]	=		d[B]
	dt			dt

3 )

-	d[A]	= 4		d[B]
	dt			dt

4 )

-	d[A]	=	1		d[B]
	dt		2		dt

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1 )	34 mol percent

2 )	48 mol percent

3 )	50 mol percent

4 )	52 mol percent

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3

4

1

2

2

4

4

1

3

2

4

3

1

2

4

2

2

3

4

1

3

1

3

1

4

3

1

2

1

2

2

3

4

1

3

Final result and score
Q No	Ans	Correct Ans	Score	Q No	Ans	Correct Ans	Score
1	-		0	2	-		0
3	-		0	4	-		0
5	-		0	6	-		0
7	-		0	8	-		0
9	-		0	10	-		0
11	-		0	12	-		0
13	-		0	14	-		0
15	-		0	16	-		0
17	-		0	18	-		0
19	-		0	20	-		0
21	-		0	22	-		0
23	-		0	24	-		0
25	-		0	26	-		0
27	-		0	28	-		0
29	-		0	30	-		0
31	-		0	32	-		0
33	-		0	34	-		0
35	-		0
Final score : 0

Answer sheet
Q No	Ans	For review	Q No	Ans	For review
1			2
3			4
5			6
7			8
9			10
11			12
13			14
15			16
17			18
19			20
21			22
23			24
25			26
27			28
29			30
31			32
33			34
35