Amines & Nitrogen Compounds · JEE Main previous year questions

2019 15 questions

1. Q682019 · 12 Apr 2019 · Shift 2

   The coordination numbers of Co and Al in $[{\text{Co(Cl)(en)}}_2]\text{Cl}$ and ${\text{K}}_3[{\text{Al(C}}_2{\text{O}}_4{)}_3]$, respectively, are : (en = ethane-1, 2-diamine)

   1. A.3 and 3
   2. B.6 and 6
   3. C.5 and 3
   4. D.5 and 6
   Show answer

   Answer: D

2. Q822019 · 12 Apr 2019 · Shift 2
   
   1. A.
   2. B.
   3. C.
   4. D.
   Show answer

   Answer: A

3. Q632019 · 10 Apr 2019 · Shift 1

   Ethylamine (${\mathrm{C}}_2{\mathrm{H}}_5\mathrm{N}{\mathrm{H}}_2$) can be obtained from N-ethylphthalimide on treatment with :

   1. A.$\mathrm{Ca}{\mathrm{H}}_2$
   2. B.${\mathrm{H}}_2\mathrm{O}$
   3. C.$\mathrm{NaB}{\mathrm{H}}_4$
   4. D.$\mathrm{N}{\mathrm{H}}_2\mathrm{N}{\mathrm{H}}_2$
   Show answer

   Answer: D

4. Q682019 · 10 Apr 2019 · Shift 1
   
   1. A.
   2. B.
   3. C.
   4. D.
   Show answer

   Answer: B

5. Q762019 · 10 Apr 2019 · Shift 1

   The species that can have a trans-isomer is : (en = ethane-1, 2-diamine, ox = oxalate)

   1. A.$[\mathrm{Cr}(\mathrm{en}{)}_2(\mathrm{ox}){]}^{+}$
   2. B.$[\mathrm{Pt}(\mathrm{en})\mathrm{C}{\mathrm{l}}_2]$
   3. C.$[\mathrm{Pt}(\mathrm{en}{)}_2\mathrm{C}{\mathrm{l}}_2{]}^{2+}$
   4. D.$[\mathrm{Zn}(\mathrm{en})\mathrm{C}{\mathrm{l}}_2]$
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   Answer: C

6. Q622019 · 10 Apr 2019 · Shift 2

   Which of the following is not a correct method of the preparation of benzylamine from cyanobenzene ?

   1. A.(i) $\mathrm{SnC}{\mathrm{l}}_2+\mathrm{HCl}(\mathrm{gas})$ \quad (ii) $\mathrm{NaB}{\mathrm{H}}_4$
   2. B.${\mathrm{H}}_2/Ni$
   3. C.(i) $\mathrm{LiAl}{\mathrm{H}}_4$ \quad (ii) ${\mathrm{H}}_3{\mathrm{O}}^{+}$
   4. D.(i) $HCl/{\mathrm{H}}_2\mathrm{O}$ \quad (ii) $\mathrm{NaB}{\mathrm{H}}_4$
   Show answer

   Answer: D

7. Q822019 · 10 Apr 2019 · Shift 2
   
   1. A.
   2. B.
   3. C.
   4. D.
   Show answer

   Answer: A

8. Q672019 · 9 Apr 2019 · Shift 1
   
   1. A.
   2. B.
   3. C.
   4. D.
   Show answer

   Answer: C

9. Q792019 · 9 Apr 2019 · Shift 1

   Aniline dissolved in dilute HCl is reacted with sodium nitrite at 0°C. This solution was added dropwise to a solution containing equimolar mixture of aniline and phenol in dil. HCl. The structure of the major product is

   1. A.${\mathrm{C}}_6{\mathrm{H}}_5-\mathrm{N}=\mathrm{N}-{\mathrm{C}}_6{\mathrm{H}}_4-\mathrm{OH}$ (para)
   2. B.${\mathrm{C}}_6{\mathrm{H}}_5-\mathrm{N}=\mathrm{N}-\mathrm{NH}-{\mathrm{C}}_6{\mathrm{H}}_5$
   3. C.${\mathrm{C}}_6{\mathrm{H}}_5-\mathrm{N}=\mathrm{N}-{\mathrm{C}}_6{\mathrm{H}}_4-\mathrm{N}{\mathrm{H}}_2$ (para)
   4. D.${\mathrm{C}}_6{\mathrm{H}}_5-\mathrm{N}=\mathrm{N}-\mathrm{O}-{\mathrm{C}}_6{\mathrm{H}}_5$
   Show answer

   Answer: C

10. Q682019 · 9 Apr 2019 · Shift 2

    The peptide that gives positive ceric ammonium nitrate and carbylamine tests is :

    1. A.Ser-Lys
    2. B.Asp-Gln
    3. C.Gln-Asp
    4. D.Lys-Asp
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    Answer: A

11. Q762019 · 9 Apr 2019 · Shift 2

    Hinsberg's reagent is :

    1. A.${\mathrm{C}}_6{\mathrm{H}}_5\mathrm{COCl}$
    2. B.${\mathrm{C}}_6{\mathrm{H}}_5\mathrm{S}{\mathrm{O}}_2\mathrm{Cl}$
    3. C.$\mathrm{SOC}{\mathrm{l}}_2$
    4. D.$(\mathrm{COCl}{)}_2$
    Show answer

    Answer: B

12. Q622019 · 11 Jan 2019 · Shift 2

    The correct match between Item I and Item II is : $$\begin{array}{llll}\text{Item I}& & \text{Item II}& \\ \text{(A)}& \text{Ester test}& \text{(P)}& \text{Tyr}\\ \text{(B)}& \text{Carbylamine test}& \text{(Q)}& \text{Asp}\\ \text{(C)}& \text{Phthalein dye test}& \text{(R)}& \text{Ser}\\ & & \text{(S)}& \text{Lys}\end{array}$$

    1. A.$\text{(A)}\to \text{(Q); (B)}\to \text{(S); (C)}\to \text{(P)}$
    2. B.$\text{(A)}\to \text{(R); (B)}\to \text{(S); (C)}\to \text{(Q)}$
    3. C.$\text{(A)}\to \text{(R); (B)}\to \text{(Q); (C)}\to \text{(P)}$
    4. D.$\text{(A)}\to \text{(Q); (B)}\to \text{(S); (C)}\to \text{(R)}$
    Show answer

    Answer: A

13. Q702019 · 11 Jan 2019 · Shift 2

    A compound 'X' on treatment with $\mathrm{B}{\mathrm{r}}_2/NaOH$, provided ${\mathrm{C}}_3{\mathrm{H}}_9\mathrm{N}$, which gives positive carbylamine test. Compound 'X' is :

    1. A.$\mathrm{C}{\mathrm{H}}_3\mathrm{C}{\mathrm{H}}_2\mathrm{C}{\mathrm{H}}_2\mathrm{CON}{\mathrm{H}}_2$
    2. B.$\mathrm{C}{\mathrm{H}}_3\mathrm{CON}(\mathrm{C}{\mathrm{H}}_3{)}_2$
    3. C.$\mathrm{C}{\mathrm{H}}_3\mathrm{C}{\mathrm{H}}_2\mathrm{COC}{\mathrm{H}}_2\mathrm{NH}$
    4. D.$\mathrm{C}{\mathrm{H}}_3\mathrm{COC}{\mathrm{H}}_2\mathrm{NHC}{\mathrm{H}}_3$
    Show answer

    Answer: A

14. Q662019 · 9 Jan 2019 · Shift 1
    
    1. A.I > II > III
    2. B.III > I > II
    3. C.III > II > I
    4. D.I > III > II
    Show answer

    Answer: B

15. Q692019 · 9 Jan 2019 · Shift 1

    The correct match between Item-I and Item-II is : $$\begin{array}{llll}\text{Item-I (drug)}& & \text{Item-II (test)}& \\ \text{A}& \text{Chloroxylenol}& \text{P}& \text{Carbylamine test}\\ \text{B}& \text{Norethindrone}& \text{Q}& \text{Sodium hydrogen carbonate test}\\ \text{C}& \text{Sulphapyridine}& \text{R}& \text{Ferric chloride test}\\ \text{D}& \text{Penicillin}& \text{S}& \text{Bayer’s test}\end{array}$$

    1. A.$\mathrm{A}\to \mathrm{R};\mathrm{B}\to \mathrm{P};\mathrm{C}\to \mathrm{S};\mathrm{D}\to \mathrm{Q}$
    2. B.$\mathrm{A}\to \mathrm{Q};\mathrm{B}\to \mathrm{S};\mathrm{C}\to \mathrm{P};\mathrm{D}\to \mathrm{R}$
    3. C.$\mathrm{A}\to \mathrm{R};\mathrm{B}\to \mathrm{S};\mathrm{C}\to \mathrm{P};\mathrm{D}\to \mathrm{Q}$
    4. D.$\mathrm{A}\to \mathrm{Q};\mathrm{B}\to \mathrm{P};\mathrm{C}\to \mathrm{S};\mathrm{D}\to \mathrm{R}$
    Show answer

    Answer: C