JEE Main 2021 Chemistry March 18 Shift 1 Paper & Solutions | Mock Tests for JEE Main and Advanced 2025 PDF Download

 Page 1


 
 
18
th
 March. 2021 | Shift 1 
SECTION - A 
1. The ionic radius of Na
+
 ion is 1.02 Å. The ionic radii (in Å) ofMg
2+
 and Al
3+
, respectivelyare : 
 (1) 0.72and 0.54   (2) 0.68 and 0.72 
 (3) 1.05 and 0.99   (4) 0.85 and 0.99  
Ans. (1) 
Sol. For iso-electronic system 
 r
? ?
eff.
1
Z
  
 
 
Na
+
Mg
2+
Al
3+
Z=11
Z=12 10 electron 
in each 
Z=atomic No.
Z=13
?
 
2. Match List-I with List-II : 
 List-I      List-II 
 (Chemicals)     (Use/Preparation/Constituent) 
 (a) Alcoholic potassium hydroxide (i) electrodes in batteries 
 (b) Pd/BaSo
4
    (ii) obtained by addition reaction 
 (c)BHC (Benzene hexachloride)  (iii) used for ?-elimination reaction 
 (d) Polyacetylene    (iv) Lindlar’s Catalyst 
 Choose the most appropriate match : 
 (1) (a)-(ii), (b)-(i), (c)-(iv), (d)-(iii)   (2) (a)-(iii), (b)-(i), (c)-(iv), (d)-(ii) 
 (3) (a)-(ii), (b)-(iv), (c)-(i), (d)-(iii)  (4) (a)-(iii), (b)-(iv), (c)-(ii), (d)-(i) 
Ans. (4) 
Sol. a/c. KOH    ?  Used for B. elimination reaction 
 Pd/ Ba son    ?  Lindlar’s catalyst 
 BHC (Benzon lexa chloride)   ? ? Addition product of benzen and chloride. 
 Poly actylene    ? ? Used in electrods in batteries 
 
3. The statements that are TRUE: 
 (A) methane leads to both global warming and photochemical smog 
 (B) methane is generated from paddy fields 
 (C) methane is a stronger global warming gas than CO
2
 
 (D) methane is a part of reducing smog. 
 Choose the most appropriate answer from the option given below: 
 (1) (B), (C), (D) only    (2) (A), (B), (C) only 
 (3) (A), (B), (D) only    (4) (A) and (B) only 
Ans. (2) 
Page 2


 
 
18
th
 March. 2021 | Shift 1 
SECTION - A 
1. The ionic radius of Na
+
 ion is 1.02 Å. The ionic radii (in Å) ofMg
2+
 and Al
3+
, respectivelyare : 
 (1) 0.72and 0.54   (2) 0.68 and 0.72 
 (3) 1.05 and 0.99   (4) 0.85 and 0.99  
Ans. (1) 
Sol. For iso-electronic system 
 r
? ?
eff.
1
Z
  
 
 
Na
+
Mg
2+
Al
3+
Z=11
Z=12 10 electron 
in each 
Z=atomic No.
Z=13
?
 
2. Match List-I with List-II : 
 List-I      List-II 
 (Chemicals)     (Use/Preparation/Constituent) 
 (a) Alcoholic potassium hydroxide (i) electrodes in batteries 
 (b) Pd/BaSo
4
    (ii) obtained by addition reaction 
 (c)BHC (Benzene hexachloride)  (iii) used for ?-elimination reaction 
 (d) Polyacetylene    (iv) Lindlar’s Catalyst 
 Choose the most appropriate match : 
 (1) (a)-(ii), (b)-(i), (c)-(iv), (d)-(iii)   (2) (a)-(iii), (b)-(i), (c)-(iv), (d)-(ii) 
 (3) (a)-(ii), (b)-(iv), (c)-(i), (d)-(iii)  (4) (a)-(iii), (b)-(iv), (c)-(ii), (d)-(i) 
Ans. (4) 
Sol. a/c. KOH    ?  Used for B. elimination reaction 
 Pd/ Ba son    ?  Lindlar’s catalyst 
 BHC (Benzon lexa chloride)   ? ? Addition product of benzen and chloride. 
 Poly actylene    ? ? Used in electrods in batteries 
 
3. The statements that are TRUE: 
 (A) methane leads to both global warming and photochemical smog 
 (B) methane is generated from paddy fields 
 (C) methane is a stronger global warming gas than CO
2
 
 (D) methane is a part of reducing smog. 
 Choose the most appropriate answer from the option given below: 
 (1) (B), (C), (D) only    (2) (A), (B), (C) only 
 (3) (A), (B), (D) only    (4) (A) and (B) only 
Ans. (2) 
 
 
Sol. Contribution of global warming gas  
 CO
2 
> CH
4
 > CFC > O
3
 > N
2
O > H
2
O 
 But CH
4
 is 40 times stronger green house gases than CO
2
 its has more heating effect. 
 
4. Compound with molecular formula C
3
H
6
O can show : 
 (1) Both positional isomerism and metamerism  
 (2) Metamerism 
 (3) Positional isomerism 
 (4) Functional group isomerism 
Ans. (4) 
Sol. C
6
H
6
O  DOU = 1  
 CH
3
 – CH
2
 – CH = O & CH
3
 –   – CH
3
  are functional isomer. 
      
 
5. Match List-I with List-II : 
 List-I      List-II 
 (a) Ca(OCl)
2
     (i) Antacid 
 (b) CaSO
4
· 
1
2
H
2
O    (ii) Cement 
 (c) CaO     (iii) Bleach 
 (d) CaCO
3
     (iv) Plaster of Paris 
 Choose the most appropriate answer from the option given below: 
 (1) (a)-(iii), (b)-(iv), (c)-(ii), (d)-(i)   (2) (a)-(iii), (b)-(ii), (c)-(iv), (d)-(i) 
 (3) (a)-(iii), (b)-(ii), (c)-(i), (d)-(iv)  (4) (a)-(i), (b)-(iv), (c)-(iii), (d)-(ii) 
Ans. (1) 
Sol. Ca(OCl)
2
         ? ? ? ? Bleaching power 
 CaSO
4
. 
1
2
H
2
O ? ? ? ?  Plaster of paris 
 CaO               ? ? ? ?  cement  
 CaCO
3
            ? ? ? ?
 
 Antacid ?
 
6. In a binary compound, atoms of element A form a hep structure and those of element 
M occupy 2/3 of the tetrahedral voids of the hep structure. The formula of the binary 
compound is : 
 (1) M
2
A
3
  (2) MA
3
  (3) M
4
A  (4) M
4
A
3 
Ans. (4) 
Sol. A ? hcp 
 M ? 2/3
rd
 of tetrahedral 
 
2 12/3
M
?
 A
6
 = M
8
A
6
 = M
4
A
3
 
 
C
O
Page 3


 
 
18
th
 March. 2021 | Shift 1 
SECTION - A 
1. The ionic radius of Na
+
 ion is 1.02 Å. The ionic radii (in Å) ofMg
2+
 and Al
3+
, respectivelyare : 
 (1) 0.72and 0.54   (2) 0.68 and 0.72 
 (3) 1.05 and 0.99   (4) 0.85 and 0.99  
Ans. (1) 
Sol. For iso-electronic system 
 r
? ?
eff.
1
Z
  
 
 
Na
+
Mg
2+
Al
3+
Z=11
Z=12 10 electron 
in each 
Z=atomic No.
Z=13
?
 
2. Match List-I with List-II : 
 List-I      List-II 
 (Chemicals)     (Use/Preparation/Constituent) 
 (a) Alcoholic potassium hydroxide (i) electrodes in batteries 
 (b) Pd/BaSo
4
    (ii) obtained by addition reaction 
 (c)BHC (Benzene hexachloride)  (iii) used for ?-elimination reaction 
 (d) Polyacetylene    (iv) Lindlar’s Catalyst 
 Choose the most appropriate match : 
 (1) (a)-(ii), (b)-(i), (c)-(iv), (d)-(iii)   (2) (a)-(iii), (b)-(i), (c)-(iv), (d)-(ii) 
 (3) (a)-(ii), (b)-(iv), (c)-(i), (d)-(iii)  (4) (a)-(iii), (b)-(iv), (c)-(ii), (d)-(i) 
Ans. (4) 
Sol. a/c. KOH    ?  Used for B. elimination reaction 
 Pd/ Ba son    ?  Lindlar’s catalyst 
 BHC (Benzon lexa chloride)   ? ? Addition product of benzen and chloride. 
 Poly actylene    ? ? Used in electrods in batteries 
 
3. The statements that are TRUE: 
 (A) methane leads to both global warming and photochemical smog 
 (B) methane is generated from paddy fields 
 (C) methane is a stronger global warming gas than CO
2
 
 (D) methane is a part of reducing smog. 
 Choose the most appropriate answer from the option given below: 
 (1) (B), (C), (D) only    (2) (A), (B), (C) only 
 (3) (A), (B), (D) only    (4) (A) and (B) only 
Ans. (2) 
 
 
Sol. Contribution of global warming gas  
 CO
2 
> CH
4
 > CFC > O
3
 > N
2
O > H
2
O 
 But CH
4
 is 40 times stronger green house gases than CO
2
 its has more heating effect. 
 
4. Compound with molecular formula C
3
H
6
O can show : 
 (1) Both positional isomerism and metamerism  
 (2) Metamerism 
 (3) Positional isomerism 
 (4) Functional group isomerism 
Ans. (4) 
Sol. C
6
H
6
O  DOU = 1  
 CH
3
 – CH
2
 – CH = O & CH
3
 –   – CH
3
  are functional isomer. 
      
 
5. Match List-I with List-II : 
 List-I      List-II 
 (a) Ca(OCl)
2
     (i) Antacid 
 (b) CaSO
4
· 
1
2
H
2
O    (ii) Cement 
 (c) CaO     (iii) Bleach 
 (d) CaCO
3
     (iv) Plaster of Paris 
 Choose the most appropriate answer from the option given below: 
 (1) (a)-(iii), (b)-(iv), (c)-(ii), (d)-(i)   (2) (a)-(iii), (b)-(ii), (c)-(iv), (d)-(i) 
 (3) (a)-(iii), (b)-(ii), (c)-(i), (d)-(iv)  (4) (a)-(i), (b)-(iv), (c)-(iii), (d)-(ii) 
Ans. (1) 
Sol. Ca(OCl)
2
         ? ? ? ? Bleaching power 
 CaSO
4
. 
1
2
H
2
O ? ? ? ?  Plaster of paris 
 CaO               ? ? ? ?  cement  
 CaCO
3
            ? ? ? ?
 
 Antacid ?
 
6. In a binary compound, atoms of element A form a hep structure and those of element 
M occupy 2/3 of the tetrahedral voids of the hep structure. The formula of the binary 
compound is : 
 (1) M
2
A
3
  (2) MA
3
  (3) M
4
A  (4) M
4
A
3 
Ans. (4) 
Sol. A ? hcp 
 M ? 2/3
rd
 of tetrahedral 
 
2 12/3
M
?
 A
6
 = M
8
A
6
 = M
4
A
3
 
 
C
O
 
 
18
th
 March. 2021 | Shift 1 
7. Match List-I with List-II : 
 List-I      List-II 
 (Class of Drug)    (Example) 
 (a) Antacid     (i) Novestrol 
 (b) Artificial Sweetner   (ii) Cimetidine 
 (c) Antifertility    (iii) Valium 
 (d) Tranquilizers    (iv) Alitame 
 Choose the most appropriate answer from the option given below: 
 (1) (a)-(iv), (b)-(iii), (c)-(i), (d)-(ii)   (2) (a)-(ii), (b)-(iv), (c)-(i), (d)-(iii) 
 (3) (a)-(ii), (b)-(iv), (c)-(iii), (d)-(i)  (4) (a)-(iv), (b)-(i), (c)-(ii), (d)-(iii) 
Ans. (2) 
Sol. Antacid    — Cinetidine 
 Artificial sweetener  — Alitame 
 Antifertility  — Novestrol 
 Tranquilizers  — Valium 
 
8. Reagent, 1-naphthylamine and sulphanilic acid in acetic acid is used for the detection 
of : 
 (1) NO  (2) N
2
O  (3) 
–
3
NO  (4) 
–
2
NO
 
Ans. (4) 
 Based on NCERT 
 
9. The correct structures of trans-[NiBr
2
(PPh
3
)
2
] and meridonial-[Co(NH
3
)
3
(NO
2
)
3
] 
respectively are : 
 (1)  (2) 
   
 (3)   (4)  
Ans. (2) 
Sol. Trans [Ni Br
2
(Pph
3
)
2
] 
Page 4


 
 
18
th
 March. 2021 | Shift 1 
SECTION - A 
1. The ionic radius of Na
+
 ion is 1.02 Å. The ionic radii (in Å) ofMg
2+
 and Al
3+
, respectivelyare : 
 (1) 0.72and 0.54   (2) 0.68 and 0.72 
 (3) 1.05 and 0.99   (4) 0.85 and 0.99  
Ans. (1) 
Sol. For iso-electronic system 
 r
? ?
eff.
1
Z
  
 
 
Na
+
Mg
2+
Al
3+
Z=11
Z=12 10 electron 
in each 
Z=atomic No.
Z=13
?
 
2. Match List-I with List-II : 
 List-I      List-II 
 (Chemicals)     (Use/Preparation/Constituent) 
 (a) Alcoholic potassium hydroxide (i) electrodes in batteries 
 (b) Pd/BaSo
4
    (ii) obtained by addition reaction 
 (c)BHC (Benzene hexachloride)  (iii) used for ?-elimination reaction 
 (d) Polyacetylene    (iv) Lindlar’s Catalyst 
 Choose the most appropriate match : 
 (1) (a)-(ii), (b)-(i), (c)-(iv), (d)-(iii)   (2) (a)-(iii), (b)-(i), (c)-(iv), (d)-(ii) 
 (3) (a)-(ii), (b)-(iv), (c)-(i), (d)-(iii)  (4) (a)-(iii), (b)-(iv), (c)-(ii), (d)-(i) 
Ans. (4) 
Sol. a/c. KOH    ?  Used for B. elimination reaction 
 Pd/ Ba son    ?  Lindlar’s catalyst 
 BHC (Benzon lexa chloride)   ? ? Addition product of benzen and chloride. 
 Poly actylene    ? ? Used in electrods in batteries 
 
3. The statements that are TRUE: 
 (A) methane leads to both global warming and photochemical smog 
 (B) methane is generated from paddy fields 
 (C) methane is a stronger global warming gas than CO
2
 
 (D) methane is a part of reducing smog. 
 Choose the most appropriate answer from the option given below: 
 (1) (B), (C), (D) only    (2) (A), (B), (C) only 
 (3) (A), (B), (D) only    (4) (A) and (B) only 
Ans. (2) 
 
 
Sol. Contribution of global warming gas  
 CO
2 
> CH
4
 > CFC > O
3
 > N
2
O > H
2
O 
 But CH
4
 is 40 times stronger green house gases than CO
2
 its has more heating effect. 
 
4. Compound with molecular formula C
3
H
6
O can show : 
 (1) Both positional isomerism and metamerism  
 (2) Metamerism 
 (3) Positional isomerism 
 (4) Functional group isomerism 
Ans. (4) 
Sol. C
6
H
6
O  DOU = 1  
 CH
3
 – CH
2
 – CH = O & CH
3
 –   – CH
3
  are functional isomer. 
      
 
5. Match List-I with List-II : 
 List-I      List-II 
 (a) Ca(OCl)
2
     (i) Antacid 
 (b) CaSO
4
· 
1
2
H
2
O    (ii) Cement 
 (c) CaO     (iii) Bleach 
 (d) CaCO
3
     (iv) Plaster of Paris 
 Choose the most appropriate answer from the option given below: 
 (1) (a)-(iii), (b)-(iv), (c)-(ii), (d)-(i)   (2) (a)-(iii), (b)-(ii), (c)-(iv), (d)-(i) 
 (3) (a)-(iii), (b)-(ii), (c)-(i), (d)-(iv)  (4) (a)-(i), (b)-(iv), (c)-(iii), (d)-(ii) 
Ans. (1) 
Sol. Ca(OCl)
2
         ? ? ? ? Bleaching power 
 CaSO
4
. 
1
2
H
2
O ? ? ? ?  Plaster of paris 
 CaO               ? ? ? ?  cement  
 CaCO
3
            ? ? ? ?
 
 Antacid ?
 
6. In a binary compound, atoms of element A form a hep structure and those of element 
M occupy 2/3 of the tetrahedral voids of the hep structure. The formula of the binary 
compound is : 
 (1) M
2
A
3
  (2) MA
3
  (3) M
4
A  (4) M
4
A
3 
Ans. (4) 
Sol. A ? hcp 
 M ? 2/3
rd
 of tetrahedral 
 
2 12/3
M
?
 A
6
 = M
8
A
6
 = M
4
A
3
 
 
C
O
 
 
18
th
 March. 2021 | Shift 1 
7. Match List-I with List-II : 
 List-I      List-II 
 (Class of Drug)    (Example) 
 (a) Antacid     (i) Novestrol 
 (b) Artificial Sweetner   (ii) Cimetidine 
 (c) Antifertility    (iii) Valium 
 (d) Tranquilizers    (iv) Alitame 
 Choose the most appropriate answer from the option given below: 
 (1) (a)-(iv), (b)-(iii), (c)-(i), (d)-(ii)   (2) (a)-(ii), (b)-(iv), (c)-(i), (d)-(iii) 
 (3) (a)-(ii), (b)-(iv), (c)-(iii), (d)-(i)  (4) (a)-(iv), (b)-(i), (c)-(ii), (d)-(iii) 
Ans. (2) 
Sol. Antacid    — Cinetidine 
 Artificial sweetener  — Alitame 
 Antifertility  — Novestrol 
 Tranquilizers  — Valium 
 
8. Reagent, 1-naphthylamine and sulphanilic acid in acetic acid is used for the detection 
of : 
 (1) NO  (2) N
2
O  (3) 
–
3
NO  (4) 
–
2
NO
 
Ans. (4) 
 Based on NCERT 
 
9. The correct structures of trans-[NiBr
2
(PPh
3
)
2
] and meridonial-[Co(NH
3
)
3
(NO
2
)
3
] 
respectively are : 
 (1)  (2) 
   
 (3)   (4)  
Ans. (2) 
Sol. Trans [Ni Br
2
(Pph
3
)
2
] 
 
 
 
 
Br
PPh
3
Ni
PPh
3
Br
 
 Meridonial [CO(NH
3
)
3
(NO
2
)
3
] 
 
 
NO
2
NH
3
CO
NH
3 
NO
2
NO
2
NH
3
    
10. Match List-I with List-II : 
 List-I      List-II 
 (a) Chlorophyll    (i) Ruthenium 
 (b) Vitamin – B
12
    (ii) Platinum 
 (c) Anticancer drug    (iii) Cobalt 
 (d) Grubbs catalyst    (iv) Magnesium 
 Choose the most appropriate answer from the option given below: 
 (1) (a)-(iv), (b)-(iii), (c)-(i), (d)-(ii)  (2) (a)-(iii), (b)-(ii), (c)-(iv), (d)-(i) 
 (3) (a)-(iv), (b)-(iii), (c)-(ii), (d)-(i) (4) (a)-(iv), (b)-(ii), (c)-(iii), (d)-(i) 
Ans. (3) 
Sol. ? ? Cis – Platin [Pt (NH
3
)
2
Cl
2
] used in treatment of cancer. 
 ? Chlorophyll is complex of Mg 
 ? Vitamin B
12
 is a complex of Co 
 ? Grubb’s catalyst are a series of catalyst containing ruthenium 
 
11. The number of ionisablehydrogens present in the product obtained from a reaction of 
phosphorus trichloride and phosphonic acid is : 
 (1) 3   (2) 1   (3) 0   (4) 2 
Ans. (4) 
Sol. PCl
3
 + H
3
PO
3 
+H
2
O ? ? ? ? H
4
P
2
O
5
             +    HCl 
                         pyrophosphorous  
            acid 
 
 
HO—P—P—OH
O O
OH H 
 
 Structure of pyrophosphorous acid shows that it has two acidic or ionisable hydrogen.  
 
Page 5


 
 
18
th
 March. 2021 | Shift 1 
SECTION - A 
1. The ionic radius of Na
+
 ion is 1.02 Å. The ionic radii (in Å) ofMg
2+
 and Al
3+
, respectivelyare : 
 (1) 0.72and 0.54   (2) 0.68 and 0.72 
 (3) 1.05 and 0.99   (4) 0.85 and 0.99  
Ans. (1) 
Sol. For iso-electronic system 
 r
? ?
eff.
1
Z
  
 
 
Na
+
Mg
2+
Al
3+
Z=11
Z=12 10 electron 
in each 
Z=atomic No.
Z=13
?
 
2. Match List-I with List-II : 
 List-I      List-II 
 (Chemicals)     (Use/Preparation/Constituent) 
 (a) Alcoholic potassium hydroxide (i) electrodes in batteries 
 (b) Pd/BaSo
4
    (ii) obtained by addition reaction 
 (c)BHC (Benzene hexachloride)  (iii) used for ?-elimination reaction 
 (d) Polyacetylene    (iv) Lindlar’s Catalyst 
 Choose the most appropriate match : 
 (1) (a)-(ii), (b)-(i), (c)-(iv), (d)-(iii)   (2) (a)-(iii), (b)-(i), (c)-(iv), (d)-(ii) 
 (3) (a)-(ii), (b)-(iv), (c)-(i), (d)-(iii)  (4) (a)-(iii), (b)-(iv), (c)-(ii), (d)-(i) 
Ans. (4) 
Sol. a/c. KOH    ?  Used for B. elimination reaction 
 Pd/ Ba son    ?  Lindlar’s catalyst 
 BHC (Benzon lexa chloride)   ? ? Addition product of benzen and chloride. 
 Poly actylene    ? ? Used in electrods in batteries 
 
3. The statements that are TRUE: 
 (A) methane leads to both global warming and photochemical smog 
 (B) methane is generated from paddy fields 
 (C) methane is a stronger global warming gas than CO
2
 
 (D) methane is a part of reducing smog. 
 Choose the most appropriate answer from the option given below: 
 (1) (B), (C), (D) only    (2) (A), (B), (C) only 
 (3) (A), (B), (D) only    (4) (A) and (B) only 
Ans. (2) 
 
 
Sol. Contribution of global warming gas  
 CO
2 
> CH
4
 > CFC > O
3
 > N
2
O > H
2
O 
 But CH
4
 is 40 times stronger green house gases than CO
2
 its has more heating effect. 
 
4. Compound with molecular formula C
3
H
6
O can show : 
 (1) Both positional isomerism and metamerism  
 (2) Metamerism 
 (3) Positional isomerism 
 (4) Functional group isomerism 
Ans. (4) 
Sol. C
6
H
6
O  DOU = 1  
 CH
3
 – CH
2
 – CH = O & CH
3
 –   – CH
3
  are functional isomer. 
      
 
5. Match List-I with List-II : 
 List-I      List-II 
 (a) Ca(OCl)
2
     (i) Antacid 
 (b) CaSO
4
· 
1
2
H
2
O    (ii) Cement 
 (c) CaO     (iii) Bleach 
 (d) CaCO
3
     (iv) Plaster of Paris 
 Choose the most appropriate answer from the option given below: 
 (1) (a)-(iii), (b)-(iv), (c)-(ii), (d)-(i)   (2) (a)-(iii), (b)-(ii), (c)-(iv), (d)-(i) 
 (3) (a)-(iii), (b)-(ii), (c)-(i), (d)-(iv)  (4) (a)-(i), (b)-(iv), (c)-(iii), (d)-(ii) 
Ans. (1) 
Sol. Ca(OCl)
2
         ? ? ? ? Bleaching power 
 CaSO
4
. 
1
2
H
2
O ? ? ? ?  Plaster of paris 
 CaO               ? ? ? ?  cement  
 CaCO
3
            ? ? ? ?
 
 Antacid ?
 
6. In a binary compound, atoms of element A form a hep structure and those of element 
M occupy 2/3 of the tetrahedral voids of the hep structure. The formula of the binary 
compound is : 
 (1) M
2
A
3
  (2) MA
3
  (3) M
4
A  (4) M
4
A
3 
Ans. (4) 
Sol. A ? hcp 
 M ? 2/3
rd
 of tetrahedral 
 
2 12/3
M
?
 A
6
 = M
8
A
6
 = M
4
A
3
 
 
C
O
 
 
18
th
 March. 2021 | Shift 1 
7. Match List-I with List-II : 
 List-I      List-II 
 (Class of Drug)    (Example) 
 (a) Antacid     (i) Novestrol 
 (b) Artificial Sweetner   (ii) Cimetidine 
 (c) Antifertility    (iii) Valium 
 (d) Tranquilizers    (iv) Alitame 
 Choose the most appropriate answer from the option given below: 
 (1) (a)-(iv), (b)-(iii), (c)-(i), (d)-(ii)   (2) (a)-(ii), (b)-(iv), (c)-(i), (d)-(iii) 
 (3) (a)-(ii), (b)-(iv), (c)-(iii), (d)-(i)  (4) (a)-(iv), (b)-(i), (c)-(ii), (d)-(iii) 
Ans. (2) 
Sol. Antacid    — Cinetidine 
 Artificial sweetener  — Alitame 
 Antifertility  — Novestrol 
 Tranquilizers  — Valium 
 
8. Reagent, 1-naphthylamine and sulphanilic acid in acetic acid is used for the detection 
of : 
 (1) NO  (2) N
2
O  (3) 
–
3
NO  (4) 
–
2
NO
 
Ans. (4) 
 Based on NCERT 
 
9. The correct structures of trans-[NiBr
2
(PPh
3
)
2
] and meridonial-[Co(NH
3
)
3
(NO
2
)
3
] 
respectively are : 
 (1)  (2) 
   
 (3)   (4)  
Ans. (2) 
Sol. Trans [Ni Br
2
(Pph
3
)
2
] 
 
 
 
 
Br
PPh
3
Ni
PPh
3
Br
 
 Meridonial [CO(NH
3
)
3
(NO
2
)
3
] 
 
 
NO
2
NH
3
CO
NH
3 
NO
2
NO
2
NH
3
    
10. Match List-I with List-II : 
 List-I      List-II 
 (a) Chlorophyll    (i) Ruthenium 
 (b) Vitamin – B
12
    (ii) Platinum 
 (c) Anticancer drug    (iii) Cobalt 
 (d) Grubbs catalyst    (iv) Magnesium 
 Choose the most appropriate answer from the option given below: 
 (1) (a)-(iv), (b)-(iii), (c)-(i), (d)-(ii)  (2) (a)-(iii), (b)-(ii), (c)-(iv), (d)-(i) 
 (3) (a)-(iv), (b)-(iii), (c)-(ii), (d)-(i) (4) (a)-(iv), (b)-(ii), (c)-(iii), (d)-(i) 
Ans. (3) 
Sol. ? ? Cis – Platin [Pt (NH
3
)
2
Cl
2
] used in treatment of cancer. 
 ? Chlorophyll is complex of Mg 
 ? Vitamin B
12
 is a complex of Co 
 ? Grubb’s catalyst are a series of catalyst containing ruthenium 
 
11. The number of ionisablehydrogens present in the product obtained from a reaction of 
phosphorus trichloride and phosphonic acid is : 
 (1) 3   (2) 1   (3) 0   (4) 2 
Ans. (4) 
Sol. PCl
3
 + H
3
PO
3 
+H
2
O ? ? ? ? H
4
P
2
O
5
             +    HCl 
                         pyrophosphorous  
            acid 
 
 
HO—P—P—OH
O O
OH H 
 
 Structure of pyrophosphorous acid shows that it has two acidic or ionisable hydrogen.  
 
 
 
18
th
 March. 2021 | Shift 1 
12. A certain orbital has no angular nodes and two radial nodes. The orbital is: 
 (1) 2p   (2) 3p   (3) 2s   (4)3s 
Ans. (4) 
Sol. No angular nodes ? ? = 0 
 Radial nodes = n – ? –1 = n – 0 – 1 = 2 
  n = 3 
 Ans. 3S 
 
13.   
 
C ? N 
H
2
O 
H
+
 
“A” 
(Major Product) 
H
2
O 
H
+
, ? 
COOH 
 
 Consider the above chemical reaction and identity product “A” : 
 (1)    (2)  
  
 (3)   (4)  
Ans. (3) 
Sol.   
 
 
 
 
 
 
C ? ?N
?
C
 
O
 
–NH
2 COOH
 
+NH
3 
H
2
O/H
+ 
Partial 
Hydrolysis 
H
2
O/H
+