Q46. Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) : The total number of geometrical isomers shown by $\left[ \mathrm { Co } ( \mathrm { en } ) _ { 2 } \mathrm { Cl } _ { 2 } \right] ^ { + }$complex ion is three. Reason (R): $\left[ \mathrm { Co } ( \mathrm { en } ) _ { 2 } \mathrm { Cl } _ { 2 } \right] ^ { + }$complex ion has an octahedral geometry. In the light of the above statements, choose the most appropriate answer from the options given below :
(1) Both (A) and (R) are correct but (R) is not the
(2) (A) is not correct but (R) is correct correct explanation of (A)
(3) Both (A) and (R) are correct and (R) is the
(4) (A) is correct but (R) is not correct correct explanation of (A)

Q46. Match List I with List II

	List - I (Test)		List - II (Observation)
A.	$\mathrm { Br } _ { 2 }$ water test	I.	Yellow orange or orange red precipitate formed
B.	Ceric ammonium nitrate test	II.	Reddish orange colour disappears
C.	Ferric chloride test	III.	Red colour appears
D.	2, 4 - DNP test	IV.	Blue, Green, Violet or Red colour appear

Choose the correct answer from the options given below:
(1) A-III, B-IV, C-I, D-II
(2) A-I, B-II, C-III, D-IV
(3) A-IV, B-I, C-II, D-III
(4) A-II, B-III, C-IV, D-I

Q47. Given below are two statements : Statements I : Acidity of $\alpha$-hydrogens of aldehydes and ketones is responsible for Aldol reaction. Statement II : Reaction between benzaldehyde and ethanal will NOT give Cross - Aldol product. In the light of the above statements, choose the most appropriate answer from the options given below :
(1) Statement I is correct but Statement II is incorrect
(2) Both Statement I and Statement II are correct
(3) Both Statement I and Statement II are incorrect
(4) Statement I is incorrect but Statement II is correct
Q48. [Figure]
Identify the product in the following reaction :
(1) [Figure]
(2) [Figure] [Figure]
(3) [Figure]
(4) [Figure]

Q47. The number of unpaired d-electrons in $\left[ \mathrm { Co } \left( \mathrm { H } _ { 2 } \mathrm { O } \right) _ { 6 } \right] ^ { 3 + }$ is
(1) 2
(2) 1
(3) 0
(4) 4

Q47. Given below are two statement: Statements I : Bromination of phenol in solvent with low polarity such as $\mathrm { CHCl } _ { 3 }$ or $\mathrm { CS } _ { 2 }$ requires Lewis acid catalyst. Statements II : The Lewis acid catalyst polarises the bromine to generate $\mathrm { Br } ^ { + }$. In the light of the above statements, choose the correct answer from the options given below :
(1) Both Statement I and Statement II are true
(2) Statement I is true but Statement II is false
(3) Statement I is false but Statement II is true
(4) Both Statement I and Statement II are false

Q47. Identify the major product in the following reaction. [Figure]
(1) [Figure]
(2) [Figure]
(3) [Figure]
(4) [Figure]
Q48. [Figure]
Consider the above reaction sequence and identify the major product $P$.
(1) Methoxymethane
(2) Methanoic acid
(3) Methanal
(4) Methane

Q47. In Reimer - Tiemann reaction, phenol is converted into salicylaldehyde through an intermediate. The structure of intermediate is $\_\_\_\_$
(1) [Figure]
(2) [Figure]
(3) [Figure]
(4) [Figure]

Q47. Identify the major products A and B respectively in the following set of reactions. $\mathrm { B } \leftarrow \frac { \mathrm { CH } _ { 3 } \mathrm { COCl } } { \text { Pyridine } }$ [Figure]
(1) [Figure]
(2) [Figure] and $\mathrm { B } =$ [Figure]
(3) [Figure]
(4)
$\mathrm { A } =$ [Figure] and B = [Figure] [Figure] Identify the product $( \mathrm { P } )$ in the following reaction: $\mathrm { A } =$

Q47. Which one the following compounds will readily react with dilute NaOH ?
(1) $\mathrm { C } _ { 2 } \mathrm { H } _ { 5 } \mathrm { OH }$
(2) $\mathrm { C } _ { 6 } \mathrm { H } _ { 5 } \mathrm { OH }$
(3) $\mathrm { C } _ { 6 } \mathrm { H } _ { 5 } \mathrm { CH } _ { 2 } \mathrm { OH }$
(4) $\left( \mathrm { CH } _ { 3 } \right) _ { 3 } \mathrm { COH }$

Q48.

Match List - I with List - II.

	(Test)		(Identification)
(A)	Bayer's test MARKS	(I)	Phenol VIARKS
(B)	Ceric ammonium nitrate test	(II)	Aldehyde
(C)	Phthalein dye test $R$ K	(III)	Alcoholic-OH group
(D)	Schiff's test	(IV)	Unsaturation

Choose the correct answer from the options given below :
(1) (A)-(IV), (B)-(III), (C)-(I), (D)-(II)
(2) (A)-(II), (B)-(III), (C)-(IV), (D)-(I)
(3) (A)-(IV), (B)-(I), (C)-(II), (D)-(III)
(4) (A)-(III), (B)-(I), (C)-(IV), (D)-(II)
Q49.
(A)
List - I (Reactions) [Figure]
(i) $\mathrm { NaNO } _ { 2 } + \mathrm { HCl }$
(ii) $\mathrm { H } _ { 2 } \mathrm { O }$, warm
(B) [Figure]
(C) [Figure]
(D) [Figure] $\xrightarrow [ \text { (ii) } \mathrm { CO } _ { 2 } ] { \text { (i) } \mathrm { NaOH } }$
Match List - I with List - II.
List - II (Products) (I) [Figure] (II) [Figure] (III) [Figure] (IV) [Figure]
Choose the correct answer from the options given below :
(1) (A)-(IV), (B)-(II), (C)-(III), (D)-(I)
(2) (A)-(I), (B)-(IV), (C)-(II), (D)-(III)
(3) (A)-(III), (B)-(II), (C)-(I), (D)-(IV)
(4) (A)-(II), (B)-(IV), (C)-(I), (D)-(III)

Q47. Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): $\mathrm { S } _ { \mathrm { N } } 2$ reaction of $\mathrm { C } _ { 6 } \mathrm { H } _ { 5 } \mathrm { CH } _ { 2 } \mathrm { Br }$ occurs more readily than the $\mathrm { S } _ { \mathrm { N } } 2$ reaction of $\mathrm { CH } _ { 3 } \mathrm { CH } _ { 2 } \mathrm { Br }$. Reason $( \mathrm { R } )$ : The partially bonded unhybridized p-orbital that develops in the trigonal bipyramidal transition state is stabilized by conjugation with the phenyl ring. In the light of the above statements, choose the most appropriate answer from the options given below :
(1) (A) is correct but (R) is not correct
(2) (A) is not correct but (R) is correct
(3) Both (A) and (R) are correct but (R) is not the
(4) Both (A) and (R) are correct and (R) is the correct explanation of (A) correct explanation of (A)

Q47. Which of the following compound can give positive iodoform test when treated with aqueous KOH solution followed by potassium hypoiodite.
(1) [Figure]
(2) [Figure]
(3) [Figure]
(4) $\mathrm { CH } _ { 3 } \mathrm { CH } _ { 2 } \mathrm { CH } _ { 2 } \mathrm { CHO }$

48. (1) 56. (707) 64. (1) 72. (2) 80. (1) 88. (7)

Q48. $\mathrm { CH } _ { 3 } - \mathrm { CH } _ { 2 } - \mathrm { CH } _ { 2 } - \mathrm { Br } + \mathrm { NaOH } \xrightarrow { \mathrm { C } _ { 2 } \mathrm { H } _ { 5 } \mathrm { OH } }$ Product 'A' [Figure]
Consider the above reactions, identify product $B$ and product $C$.
(1) $\mathrm { B } = 1$-Propanol $\mathrm { C } = 2$-Propanol
(2) $\mathrm { B } = \mathrm { C } = 2$-Propanol
(3) $\mathrm { B } = 2$-Propanol $\mathrm { C } = 1$-Propanol
(4) $\mathrm { B } = \mathrm { C } = 1$-Propanol

Q48. Identify compound ( Z ) in the following reaction sequence. [Figure]
(1) [Figure]
(2) [Figure]
(3) [Figure]
(4) [Figure]

Q48. Which among the following aldehydes is most reactive towards nucleophilic addition reactions?
(1) [Figure]
(2) [Figure]
(3) [Figure]
(4) [Figure]

Q48. During the detection of acidic radical present in a salt, a student gets a pale yellow precipitate soluble with difficulty in $\mathrm { NH } _ { 4 } \mathrm { OH }$ solution when sodium carbonate extract was first acidified with dil. $\mathrm { HNO } _ { 3 }$ and then $\mathrm { AgNO } _ { 3 }$ solution was added. This indicates presence of :
(1) $\mathrm { Br } ^ { - }$
(2) $\mathrm { I } ^ { - }$
(3) $\mathrm { Cl } ^ { - }$
(4) $\mathrm { CO } _ { 3 } { } ^ { 2 - }$
Q49. List - I List - II Reaction Type of redox reaction
Match List - I with List - II.
(A) Li
(B) Na (III) 670.8 (IV) 780.0
(C) Rb (I) 589.2 (II) 455.5
(D) Cs
Choose the correct answer from the options given below :
(1) (A)-(II), (B)-(IV), (C)-(III), (D)-(I)
(2) (A)-(I), (B)-(IV), (C)-(III), (D)-(II)
(3) (A)-(IV), (B)-(II), (C)-(I), (D)-(III)
(4) (A)-(III), (B)-(I), (C)-(IV), (D)-(II)
Q50. [Figure] [Figure]
The incorrect statements regarding enzymes are : (A) Enzymes are biocatalysts. (B) Enzymes are non-specific and can catalyse different kinds of reactions. (C) Most Enzymes are globular proteins. (D) Enzyme - oxidase catalyses the hydrolysis of maltose into glucose. Choose the correct answer from the option given below :
(1) (B), (C) and (D)
(2) (B) and (D)
(3) (A), (B) and (C)
(4) (B) and (C)

Q48.
(1) [Figure]
(2) [Figure]
(3) [Figure]
(4) [Figure]

Q48. In the following sequence of reaction, the major products $B$ and $C$ respectively are : [Figure]
(1) [Figure] and [Figure]
(2) [Figure] and [Figure]
(3) [Figure] and [Figure]
(4) and [Figure]

Q48. Which of the following compounds will give silver mirror with ammoniacal silver nitrate? A. Formic acid B. Formaldehyde C. Benzaldehyde D. Acetone Choose the correct answer from the options given below :
(1) A, B and C only
(2) C and D only
(3) B and C only
(4) A only
Q49. [Figure]
(1) [Figure]
(2) [Figure]
(3) [Figure]
(4) [Figure]

Q49. In the precipitation of the iron group (III) in qualitative analysis, ammonium chloride is added before adding ammonium hydroxide to :
(1) increase concentration of $\mathrm { Cl } ^ { - }$ions
(2) increase concentration of $\mathrm { NH } _ { 4 } { } ^ { + }$ions
(3) prevent interference by phosphate ions
(4) decrease concentration of ${ } ^ { - } \mathrm { OH }$ ions

Q49. Find out the major product formed from the following reaction. $\left[ \mathrm { Me } : - \mathrm { CH } _ { 3 } \right]$ [Figure]
(1) [Figure]
(2) [Figure]
(3) [Figure]
(4) [Figure]

Q49. Identify ' $A$ ' in the following reaction: [Figure]
(1) [Figure]
(2) [Figure]
(3) [Figure]
(4) [Figure]

Q49. Which one of the following reactions is NOT possible?
(1) [Figure]
(2) [Figure]
(3) [Figure]
(4) [Figure]

Q49.

\cline { 2 - 5 }		\begin{tabular}{ l } List - I
(Precipitating reagent and conditions)

& &

List - II

$($ Cation $)$

\cline { 2 - 5 } & A. & $\mathrm { NH } _ { 4 } \mathrm { Cl } + \mathrm { NH } _ { 4 } \mathrm { OH } /$ ARKS & I. & $\mathrm { Mn } ^ { 2 + }$ \cline { 2 - 5 } Match List I with List II & B. & $\mathrm { NH } _ { 4 } \mathrm { OH } + \mathrm { Na } _ { 2 } \mathrm { CO } _ { 3 }$ & II. & $\mathrm { Pb } ^ { 2 + }$ \cline { 2 - 5 } & C. & $\mathrm { NH } _ { 4 } \mathrm { OH } + \mathrm { NH } _ { 4 } \mathrm { Cl } + \mathrm { H } _ { 2 } \mathrm {~S}$ gas & III. & $\mathrm { Al } ^ { 3 + }$ \cline { 2 - 5 } & D. & dilute HCl & IV. & $\mathrm { Sr } ^ { 2 + }$ \cline { 2 - 5 } & & & & \cline { 2 - 5 } \end{tabular}
Choose the correct answer from the options given below:
(1) A-III, B-IV, C-I, D-II
(2) A-III, B-IV, C-II, D-I
(3) A-IV, B-III, C-II, D-I
(4) A-IV, B-III, C-I, D-II

49. (4) & 50. (2) & 51. (12) & 52. (34) \hline 57. (5) & 58. (543) & 59. (6) & 60. (15) \hline 65. (1) & 66. (3) & 67. (1) & 68. (2) \hline 73. (2) & 74. (1) & 75. (3) & 76. (4) \hline 81. (4) & 82. (3660) & 83. (61) & 84. (39) \hline 89. (43) & 90. (71) & & \hline \end{tabular}

1. (4)
2. (3)
3. (3)
4. (8)
5. (3)
6. (1)
7. (287)
8. (4)
9. (1)
10. (3)
11. (38)
12. (4)
13. (4)
14. (4)
15. (122)
16. (3)
17. (1)
18. (2000)
19. (1)
20. (4)
21. (3)
22. (17)
23. (4)
24. (3)
25. (1)
26. (3)
27. (3)
28. (4)
29. (17)
30. (3)
31. (4)
32. (2)
33. (23)
34. (4)
35. (3)
36. (740)
37. (1)
38. (3)
39. (1)
40. (0)
41. (2)
42. (2)
43. (2)
44. (3)