Organic Reactions & Conversions · JEE Main previous year questions

2018 11 questions

1. Q742018 · 16 Apr 2018 · Shift 1
   
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   4. D.
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   Answer: A

2. Q762018 · 16 Apr 2018 · Shift 1
   
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   Answer: D

3. Q772018 · 16 Apr 2018 · Shift 1
   
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   Answer: B

4. Q782018 · 16 Apr 2018 · Shift 1
   
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   Answer: A

5. Q792018 · 16 Apr 2018 · Shift 1
   
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   Answer: A

6. Q632018 · 15 Apr 2018 · Shift 1

   In which of the following reactions, an increase in the volume of the container will favour the formation of products?

   1. A.$2{\text{NO}}_2(\text{g})\rightleftharpoons 2\text{NO}(\text{g})+{\text{O}}_2(\text{g})$
   2. B.${\text{H}}_2(\text{g})+{\text{I}}_2(\text{g})\rightleftharpoons 2\text{HI}(\text{g})$
   3. C.$4{\text{NH}}_3(\text{g})+5{\text{O}}_2(\text{g})\rightleftharpoons 4\text{NO}(\text{g})+6{\text{H}}_2\text{O}(\text{l})$
   4. D.$3{\text{O}}_2(\text{g})\rightleftharpoons 2{\text{O}}_3(\text{g})$
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   Answer: A

7. Q662018 · 15 Apr 2018 · Shift 1

   For which of the following reactions, $\Delta \text{H}$ is equal to $\Delta \text{U}$?

   1. A.${\text{N}}_2(\text{g})+3{\text{H}}_2(\text{g})\to 2{\text{NH}}_3(\text{g})$
   2. B.$2\text{HI}(\text{g})\to {\text{H}}_2(\text{g})+{\text{I}}_2(\text{g})$
   3. C.$2{\text{NO}}_2(\text{g})\to {\text{N}}_2{\text{O}}_4(\text{g})$
   4. D.$2{\text{SO}}_2(\text{g})+{\text{O}}_2(\text{g})\to 2{\text{SO}}_3(\text{g})$
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   Answer: B

8. Q842018 · 15 Apr 2018 · Shift 1
   
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   Answer: A

9. Q852018 · 15 Apr 2018 · Shift 1
   
   1. A.(i) ${\text{B}}_2{\text{H}}_6$; (ii) ${\text{SnCl}}_2/\text{HCl}$; (iii) ${\text{H}}_3{\text{O}}^{+}$
   2. B.(i) ${\text{LiAlH}}_4$; (ii) ${\text{H}}_3{\text{O}}^{+}$
   3. C.(i) ${\text{B}}_2{\text{H}}_6$; (ii) DIBALH; (iii) ${\text{H}}_3{\text{O}}^{+}$
   4. D.(i) ${\text{NaBH}}_4$; (ii) Raney ${\text{Ni/H}}_2$; (iii) ${\text{H}}_3{\text{O}}^{+}$
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   Answer: A

10. Q792018 · 8 Apr 2018 · Shift 1
    
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    Answer: C

11. Q822018 · 8 Apr 2018 · Shift 1
    
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    Answer: A